HomeMy WebLinkAbout2022-11-14 Ordinance 5564
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Ordinance No. 5564
Ordinance of the Council of the City of Palo Alto Repealing Chapter 16.04 of the
Palo Alto Municipal Code and Adopting a New Chapter 16.04, California Building
Code, and a New Chapter 16.19, California Historical Building Code and California
Existing Building Code, 2022 Editions, and Local Amendments and Related
Findings
The Council of the City of Palo Alto does ORDAIN as follows:
SECTION 1. Chapter 16.04 of the Palo Alto Municipal Code is hereby amended by repealing it in
its entirety and adopting a new Chapter 16.04 to read as follows:
CHAPTER 16.04
CALIFORNIA BUILDING CODE,
CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 2, VOLUMNS 1 & 2
Sections
16.04.010 2022 California Building Code, Title 24, Part 2, Volumes 1 & 2 adopted and
amended.
16.04.020 Cross - References to California Building Code.
16.04.030 Local Amendments.
16.04.040 Adoption of 2022 California Building Code Chapter 1,
Division II Scope and Administration, Part 1 Scope and Application
and Part 2 Administration and Enforcement.
16.04.050 Section 101.1 Title.
16.04.060 Section 101.2.1 Appendices.
16.04.070 101.4 Referenced codes.
16.04.080 Section 103 Code Compliance Agency.
16.04.090 Section 104.2.1 Determination of substantially improved or substantially
damaged existing buildings and structures in flood hazard areas.
16.04.100 Section 104.10.1 Flood hazard area.
16.04.110 Section 105.2 Work exempt from permit.
16.04.120 Section 105.3.2 Time limitation of application.
16.04.130 Section 105.5 Expiration.
16.04.140 Section 106.1 Live loads posted.
16.04.150 Section 109.6 Refunds.
16.04.160 Section 109.7 Re-Inspection fees.
16.04.170 Section 110.2.1 Preliminary accessibility compliance inspection.
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16.04.180 Section 110.3.3 Lowest floor elevation.
16.04.190 Section 111.1 Use and occupancy.
16.04.200 Section 111.3 Temporary occupancy.
16.04.210 Section 111.5 Posting.
16.04.220 Section 113 Means of Appeals.
16.04.225 Section 114 Violations.
16.04.230 Section 115 Stop Work Order.
16.04.240 Section 502.1 Address identification.
16.04.250 Section 702A Definitions Wildland-Urban Interface Fire Area.
16.04.260 Section 903.2 Automatic sprinkler systems, where required.
16.04.270 Section 903.3.1.1 NFPA 13 sprinkler systems.
16.04.280 Section 903.3.1.2 NFPA 13R sprinkler systems.
16.04.290 Section 903.3.1.3 NFPA 13D sprinkler systems.
16.04.300 Section 903.3.1.3.1 Increase in fire sprinkler design criteria.
16.04.310 Section 903.4.3 Floor control valves.
16.04.320 Section 905.3.1 Height.
16.04.330 Section 907.2.11.10 Replacement.
16.04.340 Section 909.20.8 Smoke control systems schedule.
16.04.350 Section 1008.3.3 Rooms and spaces.
16.04.360 Section 1031.2 Where required.
16.04.370 Reserved.
16.04.380 Section 1205.3.4 Roof guards at courts.
16.04.390 Section 1208.5 Dwelling unit and congregate residence superficial floor area.
16.04.400 Section 1503.2.1 Locations.
16.04.410 Section 1612.1.1 Palo Alto Flood Hazard Regulations.
16.04.420 Section 1613.5 Suspended ceilings.
16.04.430 Section 1613.5 ASCE 7, Section 13.1.4 Seismic design requirements for
nonstructural components.
16.04.440 Section 1705.3 Concrete construction.
16.04.450 Section 1803.2 Investigations required.
16.04.460 Section 1803.5.11 Seismic design categories C through F.
16.04.470 Section 1809.7 Prescriptive footings for light-frame construction.
16.04.480 Section 1809.8 Plain concrete footings.
16.04.490 Section 1901.2 Plain and reinforced concrete.
16.04.500 Section 1905.1.7 ACI 318, Section 14.1.4.
16.04.510 SECTION 1906 FOOTINGS FOR LIGHT-FRAME CONSTRUCTION
16.04.520 Section 1906.1 Plain concrete footings.
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16.04.530 Section 1907.1 General.
16.04.540 Section 2305.4 Hold-down connections.
16.04.550 Section 2307.2 Wood-framed shear walls.
16.04.560 Section 2308.6.4 Braced wall panel construction.
16.04.570 Section 2308.6.5 Alternative bracing.
16.04.580 TABLE 2308.6.1 WALL BRACING REQUIREMENTS.
16.04.590 TABLE 2308.6.3(1) BRACING METHODS.
16.04.600 Section 2308.6.9 Attachment of sheathing.
16.04.610 SECTION 2505 SHEAR WALL CONSTRUCTION.
16.04.620 Section 2508.6 Horizontal gypsum board or gypsum panel product diaphragm
ceilings.
16.04.630 Chapter 31B Public Pools.
16.04.640 Section 3304.1 Excavation and fill.
16.04.010 2022 California Building Code, Title 24, Part 2, Volumes 1 & 2 adopted and
amended.
The California Building Code, 2022 Edition, Title 24, Part 2, Volumes 1 & 2 of the California Code
of Regulations, together with those omissions, amendments, exceptions, and additions thereto,
is adopted and hereby incorporated in this Chapter by reference and made a part hereof the
same as if fully set forth herein.
Unless superseded and expressly repealed, references in City of Palo Alto forms, documents and
regulations to the chapters and sections of any former iteration of the California Code of Regulations,
Title 24, shall be construed to apply to the corresponding provisions contained within the California
Code of Regulations, Title 24, 2022. Ordinance No. 5508 of the City of Palo Alto and all other
ordinances or parts of ordinances in conflict herewith are hereby expressly repealed.
ordinance of the City, such phrases shall be deemed and construed to refer and apply to the
California Building Code, 2022 Edition, Title 24, Part 2 of the California Code of Regulations, as
adopted by this chapter.
One (1) copy of the California Building Code, 2022 Edition, has been filed for use and examination
of the public in the Office of the Chief Building Official of the City of Palo Alto.
16.04.020 Cross - References to California Building Code.
The provisions of this Chapter contain cross-references to the provisions of the California Building
Code, 2022 Edition, in order to facilitate reference and comparison to those provisions.
16.04.030 Local Amendments.
The provisions of this Chapter shall constitute local amendments to the cross-referenced provisions
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of the California Building Code, 2022 Edition, and shall be deemed to replace the cross-referenced
sections of said Code with the respective provisions set forth in this Chapter. Where used in this
Chapter 16.04, ellipses shall indicate text of the California Building Code, 2022 Edition, that has
been adopted without amendment but is omitted for brevity.
16.04.040 Adoption of 2022 California Building Code Chapter 1,
Division II Scope and Administration, Part 1 Scope and Application
and Part 2 Administration and Enforcement
Chapter 1, Division II, Parts 1 Scope and Application and Part 2 Administration and
Enforcement of the 2022 California Building Code are adopted in their entirety, as amended
herein.
16.04.050 Section 101.1 Title.
Section 101.1 of the California Building Code is amended to read:
101.1 Title. These regulations shall be known as the Building Code of City of Palo Alto,
16.04.060 Section 101.2.1 Appendices.
Section 101.2.1 of the California Building Code is amended to read:
The following Appendix chapters and sections of the California Building Code, 2022 Edition,
are adopted and hereby incorporated in this Chapter by reference and made a part hereof
the same as if fully set forth herein:
A. Appendix I Patio Covers (Sections I101 through I105)
B. Appendix J Grading (Section J109.4 Drainage across property lines)
C. Appendix P Emergency Housing (Sections P101 through P110)
16.04.070 101.4 Referenced codes.
Section 101.4 of the California Building Code is amended to add subdivisions 101.4.8 through
101.4.12, as follows:
101.4 Referenced codes. The other codes listed in Section 101.4.1 through 101.4.12 and
referenced elsewhere in this code shall be considered part of the requirements of this
code to the prescribed extent of each such reference.
[. . .]
101.4.8 Historical Buildings. The provisions of the California Historical
Code shall apply to the alteration, addition, and relocation to qualified
historical buildings or properties.
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101.4.9 Electrical. The provisions of the California Electrical Code shall apply
to the installation of electrical systems, including alterations, repairs,
replacement, equipment, appliances, fixtures, fittings and appurtenances
thereto.
101.4.10 Residential Buildings. The provisions of the California Residential
Code shall apply to all matters governing the design and construction of
detached, one- and two-family dwellings, townhouses not more than three
stories and separate means of egress, and structural accessory thereto.
101.4.11 Green Building Standards. The provisions of the California Green
Building Standards Code shall apply to all matters governing the "green
building" related planning, design construction, operation, use and occupancy
of newly constructed and altered buildings.
101.4.12 International Swimming and Spa Code. The provisions of the 2021
International Swimming and Spa Code shall apply to the installation of private
swimming pools and spa facilities.
16.04.080 Section 103 Code Compliance Agency.
Section 103 of the California Building Code is amended to read:
103.1 Creation of enforcement agency. The Planning and Development Services
Department is hereby created and the official in charge thereof shall be known as the
chief building official, also referred to as building official or code official. The function of
the department shall be the implementation, administration, and enforcement of the
provisions of this code.
103.2 Appointment. The building official shall be appointed by the chief appointing
authority of the jurisdiction.
103.3 Deputies. In accordance with the prescribed procedures of this jurisdictions and
with the concurrence of the appointing authority, the building official shall have the
authority to appoint assistant chief building officials, manager supervisors, and other
technical officers, inspectors, and other employees. Such employees shall have powers as
delegated by the building official.
16.04.090 Section 104.2.1 Determination of substantially improved or substantially
damaged existing buildings and structures in flood hazard areas.
Section 104.2.1 of the California Building Code is amended to read:
104.2.1 Determination of substantially improved or substantially damaged existing
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buildings and structures in flood hazard areas.For applications for reconstruction,
rehabilitation, repair, alteration, addition or other improvement of existing buildings or
structures located in flood hazard areas, the city engineer or designee shall determine if
the proposed work constitutes substantial improvement or repair of substantial damage.
Where the city engineer or designee determines that the proposed work constitutes
substantial improvement or repair of substantial damage, and where required by this
code, the city engineer or designee shall require the building to meet the requirements
of Section 1612 of the California Building Code, Section R322 of the California Residential
Code as amended, or Palo Alto Municipal Code 16.52 Flood Hazard Regulations,
whichever is more stringent.
16.04.100 Section 104.10.1 Flood hazard area.
Section 104.10.1 of the California Building Code is amended to read:
104.10.1 Flood hazard areas. The city engineer or designee shall not grant
modifications to any provision required in flood hazard areas as established by Section
1612.3 unless a determination has been made that:
1. A showing of good and sufficient cause that the unique characteristics of the
size, configuration or topography of the site render the elevation standards of
Section 1612 inappropriate.
2. A determination that failure to grant the variance would result in exceptional
hardship by rendering the lot undevelopable.
3. A determination that the granting of a variance will not result in increased
flood heights, additional threats to public safety, extraordinary public
expense, cause fraud on or victimization of the public, or conflict with existing
laws or ordinances.
4. A determination that the variance is the minimum necessary to afford relief,
considering the flood hazard.
5. Submission to the applicant of written notice specifying the difference
between the design flood elevation and the elevation to which the building is
to be built, stating that the cost of flood insurance will be commensurate with
the increased risk resulting from the reduced floor elevation, and stating that
construction below the design flood elevation increases risks to life a
property.
16.04.110 Section 105.2 Work exempt from permit.
Section 105.2 of the California Building Code is amended to read:
105.2 Work exempt from permit. Exemptions from permit requirements of this code
shall not be deemed to grant authorization for any work to be done in any manner in
violation of the provisions of this code or any other laws or ordinances of
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this jurisdiction. Permits shall not be required for the following:
Building:
1. One-story detached accessory structures used as tool and storage sheds,
playhouses and similar uses, provided that the floor area does not exceed
120 square feet (11.15 m2). It is permissible that these structures still be
regulated by Section 710A, despite exemption from permit.
2. Wood fences not over 7 feet (2134 mm) high or concrete or masonry wall
not over 4 feet (1219 mm) high when not subject to specific city of Palo
Alto Planning and Zoning regulations.
3. Retaining walls that are not over 4 feet (1219 mm) in height measured
from the bottom of the footing to the top of the wall, unless supporting
a surcharge or impounding Class I, II or IIIA liquids.
4. Oil derricks.
5. Water tanks supported directly on grade if the capacity is not greater
than 5,000 gallons (18 925 L) and the ratio of height to diameter or width
is not greater than 2:1.
6. Sidewalks and driveways not more than 30 inches (762 mm) above
adjacent grade and not over any basement or story below and are not
part of an accessible route, accessible parking spaces, or required exits.
7. Wood decks not over 30 inches above surrounding grade or finishes, not
attached to a structure, or serving any part of the means of egress.
8. Painting, papering, tiling, carpeting, cabinets, counter tops and similar
finish work.
9. Temporary motion picture, television and theater stage sets and
scenery.
10. Prefabricated swimming pools accessory to a Group R-3 occupancy that
are less than 18 inches deep, do not exceed 5,000 gallons and are
installed entirely above ground.
11. Shade cloth structures constructed for nursery or agricultural purposes,
not including service systems.
12. Swings and other playground equipment accessory to detached one- and
two- family dwellings and not considered a public playground.
13. Window awnings supported by an exterior wall that do not project more
than 54 inches (1,372 mm) from the exterior wall and do not require
additional support of Group R-3 and U occupancies.
14. Nonfixed and movable fixtures, cases, racks, counters and partitions not
over 5 feet 9 inches (1753 mm) in height.
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Electrical:
1. Repairs and maintenance: Minor repair work, including the replacement
of lamps or the connection of approved portable electrical equipment
to approved permanently installed receptacles.
2. Radio and television transmitting stations: The provisions of this code
shall not apply to electrical equipment used for radio and television
transmissions, but do apply to equipment and wiring for a power supply
and the installations of towers and antennas.
3. Temporary testing systems: A permit shall not be required for the
installation of any temporary system required for the testing or servicing
of electrical equipment or apparatus.
4. Temporary decorative lighting: Exterior listed plug-in decorative lighting
plugged into a waterproof GFCI receptacle outlet.
5. Replacement of overcurrent devices: Replacement of any overcurrent
device less than 1,200 amps of the same capacity in the same location.
6. Wiring for temporary theatre, motion picture or television stage sets.
7. Electrical wiring, devices, appliances, apparatus, or equipment operating
at less than 25 volts and not capable of supplying more 50 watts of energy.
Gas:
1. Portable heating appliance.
2. Replacement of any minor part that does not alter approval
of equipment or make such equipment unsafe.
Mechanical:
1. Portable heating appliance.
2. Portable ventilation equipment.
3. Portable cooling unit.
4. Steam, hot or chilled water piping within any heating or
cooling equipment regulated by this code.
5. Replacement of any part that does not alter its listing/approval or make
it unsafe.
6. Portable evaporative cooler.
7. Self-contained refrigeration system containing 10 pounds (4.54 kg) or
less of refrigerant and actuated by motors of 1 horsepower (0.75 kW) or
less.
Plumbing:
1. The stopping of leaks in drains, water, soil, waste or vent pipe, provided,
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however, that if any concealed trap, drain pipe, water, soil, waste or vent
pipe becomes defective and it becomes necessary to remove and replace
the same with new material, such work shall be considered as new work
and a permit shall be obtained and inspection made as provided in this
code.
2. The clearing of stoppages or the repairing of leaks in pipes, valves or
fixtures and the removal and reinstallation of water closets, provided
that such repairs do not involve or require the replacement or
rearrangement of valves, pipes or fixtures.
[. . .]
16.04.120 Section 105.3.2 Time limitation of application.
Section 105.3.2 of Chapter 1 of the California Building Code is amended to read:
105.3.2 Time limitation of application. An accepted application for a permit for any proposed
work shall be deemed to have been abandoned twelve (12) months after the date of filing,
unless such application has been pursued in good faith or a permit has been issued; except
that the building official is authorized to grant one or more extensions and/or reactivations
for additional periods not exceeding ninety (90) days each. The extension shall be required
in writing and justifiable cause demonstrated.
16.04.130 Section 105.5 Expiration.
Section 105.5 of Chapter 1 of the California Building Code is amended to read:
105.5 Expiration. Every permit issued shall become invalid unless the work on the site
authorized by such permit is commenced within twelve (12) months after its issuance, or
if the work authorized on the site by such permit is suspended or abandoned for a period
of twelve (12) months after the time the work is commenced. For the purpose of this
section, failure to progress a project to the next level of required inspection, as
determined by the chief building official, shall be deemed to be suspension of the work.
The chief building official or designee is authorized to grant, in writing, no more than three
extensions and reactivations of permits that would otherwise expire or reactivations of
expired permits, for periods not more than 180 days each and may require:
1. that construction documents be revised to partially or fully to comply with
current codes and ordinances; and
2. payment of fees; and
3. payment of a penalty pursuant to Chapter 16.62 of the Palo Alto Municipal
Code.
Extensions and reactivations shall be requested in writing and justifiable cause
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demonstrated. Additional extensions or reactivations beyond three may only be granted
with the approval of the City Council.
105.5.1 Term limit for permits. All work associated with a building permit must be
completed, and final inspection issued, within forty-eight (48) months of permit issuance.
Once a term limit has been exhausted without obtaining an approved final inspection the
permit will automatically become void. The chief building official or designee is
authorized to allow a new permit application to be applied for the original scope of work
and may require:
1. that construction documents be revised to partially or fully to comply with
current codes and ordinances; and
2. payment of partial or all plan review and permit fees; and
3. payment of a penalty pursuant to Chapter 16.62 of the Palo Alto Municipal
Code.
16.04.140 Section 106.1 Live loads posted.
Section 106.1 of the California Building Code is amended to read:
106.1 Live Loads Posted. In commercial, institutional or industrial buildings, for each floor
or portion thereof designed for live loads exceeding 50 psf (2.40 kN/m2), such design live
loads shall be conspicuously posted by the owner or the owner's authorized agent in that
part of each story in which they apply, using durable signs. It shall be unlawful to remove or
deface such notices.
16.04.150 Section 109.6 Refunds.
Section 109.6 of Chapter 1 of the California Building Code is amended to read:
109.6 Refunds. The building official or designee may authorize the refund of any fee paid
hereunder which was erroneously paid or collected. The building official or designee may
authorize the refund of not more than eighty percent (80%) of the Permit Fee paid when
no work has occurred under a permit issued pursuant to this Chapter. The building official
or designee may authorize the refund of not more than eighty percent (80%) of the Plan
Review Fee paid when a permit application is withdrawn or canceled before any plan
review work has started.
16.04.160 Section 109.7 Re-Inspection fees.
Section 109.7 of Chapter 1 of the California Building Code is added to read:
109.7 Re-Inspection Fees. A re-inspection fee may be assessed/authorized by the
building official or designee for each occurrence as itemized below:
1. inspection record card is not posted or otherwise available on the work site;
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or
2. approved plans are not readily available for the inspector at the time of
inspection; or
3. inspector is unable to access the work at the time of inspection; or
4. when work has substantially deviated from the approved plans without the
prior approval of required revision; or
5. when work for which an inspection is requested is not ready for inspection; or
6. when required corrections noted during prior inspections have not been
completed.
When a re-inspection fee is assessed, additional inspection of the work will not be performed
until the fee has been paid.
16.04.170 Section 110.2.1 Preliminary accessibility compliance inspection.
Section 110.2.1 of Chapter 1 of the California Building Code is added to read:
110.2.1 Preliminary accessibility compliance inspection. Before issuing a permit, the
building official or designee is authorized to examine or cause to be examined the pre-
construction accessibility compliance conditions of the buildings, structures, and sites for
which an application has been filed.
16.04.180 Section 110.3.3 Lowest floor elevation.
Section 110.3.3 of Chapter 1 of the California Building Code is amended to read:
110.3.3 Lowest floor elevation. In flood hazard areas, upon placement of the lowest
floor, including the basement, and prior to further vertical construction, the elevation
certification shall be submitted to City Public Works Engineering for inspection approval
prior to foundation inspection by City Building Inspection.
16.04.190 Section 111.1 Use and occupancy.
Section 111.1 of Chapter 1 of the California Building Code is amended to read:
111.1 Use and occupancy. A building or structure shall not be used or occupied, and a
change in the existing occupancy of a building or structure or portion thereof shall not be
made, until the chief building official has issued a certificate of occupancy therefor as
provided herein. Issuance of a certificate of occupancy shall not be construed as an
approval of a violation of the provisions of this code or of other ordinances of the
jurisdiction.
Exception: Certificates of occupancy are not required or issued for:
1. Work exempted from permits under Section 105.2
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2. Group R Division 2, 3 occupancies
3. Group U occupancies accessory to R3 and R2 occupancies
111.1.1 Change of occupancy or tenancy. Each change of occupancy, official name or
tenancy of any building, structure, or portion thereof, shall require a new certificate of
occupancy, whether or not any alterations to the building are required by this code.
Before any application for a new certificate of occupancy is accepted, a fee shall be
paid by the applicant to cover the cost of the inspection of the building required by the
change of occupancy or tenancy.
When application is made for a new certificate of occupancy under this section, the
building official and fire chief shall cause an inspection of the building to be made. The
inspector(s) shall inform the applicant of those alterations necessary, or if none are
necessary, and shall submit a report of compliance to the building official.
If a portion of any building does not conform to the requirements of this code for a
proposed occupancy, that portion shall be made to conform. The building official may
issue a new certificate of occupancy without requiring compliance with all such
requirements if it is determined that the change in occupancy or tenancy will result in
no increased hazard to life or limb, health, property, or public welfare.
16.04.200 Section 111.3 Temporary occupancy.
Section 111.3 of Chapter 1 of the California Building Code is amended to read:
111.3 Temporary occupancy. The building official or designee is authorized to issue a
temporary certificate of occupancy before the completion of the entire work covered by
the permit, or as otherwise required, provided that such portion or portions shall be
occupied safely. The building official or designee shall set a time period during which the
temporary certificate of occupancy is valid.
16.04.210 Section 111.5 Posting.
Section 111.5 of Chapter 1 of the California Building Code is added to read:
111.5 Posting. The temporary certificate of occupancy or certificate of occupancy shall be
posted in a conspicuous, readily accessible place in the building or portion of building to
be occupied and shall not be removed except when authorized by the building official.
16.04.220 Section 113 Means of Appeals.
Section 113 of Chapter 1 of the California Building Code is amended to read:
//
//
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SECTION 113
MEANS OF APPEALS
113.1 Appeals. A person requesting an order, decision, or determination by the building
official relative to the California Building Code (as amended) may appeal such order,
decision or determination by completing a request for hearing form and returning it to
the City within thirty calendar days from the date of the decision, together with all
. A request for hearing
shall be based on a claim that the true intent of the California Building Code (as amended)
or the rules legally adopted thereunder have been incorrectly interpreted, the provisions
of this code do not fully apply or an equivalent or better form of construction is proposed.
(a) The person requesting the hearing shall be notified of the time and place set for the
hearing at least ten days prior to the date of the hearing.
(b) If the building official submits an additional written report concerning the decision to
hearing officer for consideration at the hearing, then a copy of this report shall also be
served on the person requesting the hearing at least five days prior to the date of the
hearing.
(c) The appeal procedure set out in this Section 113.1 et seq. does not apply to: (1)
decisions by the building official or any other City official related to administrative
enforcement actions taken under Chapter 1.12 or Chapter 1.16 of the Palo Alto Municipal
Code; (2) decisions by the City to enforce the California Building Code under any provision
of criminal law; or (3) any other action taken by the City that specifies its own appeal
procedure.
113.2 Hearing Officer. The building official shall designate a hearing officer for the appeal
hearing. The hearing officer may consist of one person or a body of people. The hearing
officer shall not be the building official or any directly subordinate employees.
(a) The hearing officer does not have authority to waive requirements of the California
Building Code (as amended) or interpret the administration of the Code.
(b) The hearing officer does not have authority to issue an order, decision, or
determination on his or her own authority. This includes the issuance or amendment of
building permits.
(c) The hearing officer shall be qualified by experience and training to pass on matters
pertaining to building construction.
113.3 Hearing procedures.
(a) No appeal hearing before a hearing officer shall be noticed unless the applicable
fee(s) been paid in advance in accordance with Section 113.1.
(b) A hearing before the hearing officer shall be set for a date that is not less than fifteen
days and not more than sixty days from the date that the request for hearing is filed in
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accordance with the provisions of this chapter. The party requesting the hearing may
request one continuance for any reason, provided that the hearing officer is given the
request for continuance at least forty-eight hours in advance of the scheduled hearing
and that the deferred hearing shall not be deferred more than ninety days after the
request for hearing was made. A request for continuance made less than forty-eight hours
before the scheduled hearing may be granted by the hearing officer based upon exigency
only. The parties may stipulate to an alternative hearing date schedule outside of these
rules upon a finding of good cause and approval from the hearing officer.
(c) At the hearing, the appellant shall be given the opportunity to testify and to present
evidence and cross-examine witnesses concerning the appeal. The appellant may appear
personally or through a representative. Prehearing discovery is not authorized, but
subpoena of witnesses and documents shall be permitted as authorized by law. The
hearing officer may conduct the hearing informally, both as to rules of procedure and
admission of evidence, in any manner which will provide a fair hearing.
(d) The failure of the appellant to appear at the hearing or, in the alternative, to present
written or demonstrative evidence shall constitute the dismissal of the appeal with
prejudice.
(e) The administrative record and any additional report submitted by the building official
shall constitute presumptive evidence of the respective facts contained in those
documents. The building official shall have the same rights as the appellant to testify,
present evidence, and cross-examine witnesses concerning the appeal.
(f) The hearing officer may continue the hearing and request additional information from
the building official or appellant prior to issuing a written decision.
(a) After considering all the testimony and evidence submitted at the hearing, the
hearing officer shall issue a written decision to uphold or amend the buil
order, decision or determination, and the reasons for that decision. The decision of the
hearing officer shall be issued within thirty days following completion of the hearing. The
decision of the hearing officer shall be final upon service on the appellant, subject only to
judicial review as allowed by law.
(b) The hearing officer shall consider any written or oral evidence submitted at the
hearing consistent with ascertainment of the facts regarding the issues of the appeal.
(c) If the hearing officer determines that the order, decision, or
determination should not be upheld as originally given, then the hearing officer shall
direct the building official to make any amendments or changes necessary to implement
The hearing officer shall also give the building official a
reasonable deadline to complete such actions.
(d) The appellant shall be served with a copy of the hearing officer's written decision
within ten calendar days following its issuance.
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16.04.225 Section 114 Violations.
Section 114 of Chapter 1 of the California Building Code is amended to read:
SECTION 114
VIOLATIONS
114.1 Unlawful acts. It is unlawful for any person to violate any provision or to fail to comply
with any of the requirements of this Chapter or any permits, conditions, or variances granted
under this Chapter. Violators shall be subject to any penalty or penalties authorized by law,
including but not limited to: administrative enforcement pursuant to Chapters 1.12, 1.16 and
16.62 of the Palo Alto Municipal Code; and criminal enforcement pursuant to Chapter 1.08
of the Palo Alto Municipal Code. Each separate day or any portion thereof during which any
violation of this Chapter occurs or continues shall be deemed to constitute a separate offense.
When the chief building official determines that a violation of this Chapter has occurred,
the chief building official may, in his or her sole discretion, record a notice of pendency of
code violation with the Office of the County Recorder stating the address and owner of the
property involved. When the violation has been corrected, the chief building official shall
issue and record a release of the notice of pendency of code violation.
114.2 Criminal enforcement authority. The employee positions designated in this section
are authorized to exercise the authority provided in California Penal Code section 836.5
for violations of this Chapter. The designated employee positions are: (1) chief building
official, (2) assistant chief building official, (3) building inspection manager, (4) Building
Inspector or Building Inspector Specialist as designated by the chief building official and
(5) code enforcement officer.
16.04.230 Section 115 Stop Work Order.
Section 115 of Chapter 1 of the California Building Code is amended to read:
SECTION 115
STOP WORK ORDER
115.1 Authority. Whenever the building official finds any work regulated by this code
being performed in a manner that is contrary to the provisions of this code, without a
permit, beyond the scope of the issued permit, in violation of the Palo Alto Municipal
Code or Zoning Ordinance, or dangerous or unsafe, the building official is authorized to
issue a stop work order.
115.2 Issuance. The stop work order shall be in writing and shall be posted in a visible
agent is not on site at the time of posting, a notice advising the reasons for the stop work
order issuance shall be hand delivered or mailed first-class to the owner of the property
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stop work order, the cited work shall immediately cease. The stop work order shall state
the reason for the order, the conditions under which the cited work will be permitted to
resume, and the name and contact information of the official or agency issuing the order.
115.3 Unlawful continuance. Any person who continues to engage in any work after
having been served with a stop work order, except such work as that person is directed
to perform to remove a violation or unsafe condition, shall be guilty of a misdemeanor.
115.4 Removal of posted stop work order. Any person who removes a posted stop work
order without written consent of the Building Official shall be guilty of a misdemeanor.
115.5 Response required. Violators receiving a stop work order are required to respond
to Planning and Development Services within five (5) business days of the issued notice
to receive instructions on how to rescind the order.
115.6 Permit application required. A building permit application with construction or
demolition plans and supporting (structural calculations, energy calculations, accessible
access) documents must be submitted for approval within twenty (20) working days
following response to Planning and Development Services. Plans will be reviewed and
correction letters issued or permit application approved by Planning and Development
Services. A response to any correction letter must be submitted within fifteen (15)
working days of the date of the correction letter. Ten (10) working days will be required
to review this second submission and a permit approved for issuance. Permits ready for
issuance must be issued within five (5) working days thereafter. All construction must be
inspected as work progresses and signed off by all (affected) departments within the
permit term limits outlined in Section 105.5.1 or as determined by the building official.
115.7 Stop work order penalty. The Building Official may impose Stop Work Order
Penalties in accordance with Section 1.14.050 of this code and/or other applicable law.
16.04.240 Section 502.1 Address identification.
Section 502.1 of Chapter 5 of the California Building Code is amended to read:
502.1 Address identification. New and existing buildings shall be provided with approved
address identification. The address identification shall be legible and placed in a position
that is visible from the street or road fronting the property. Address identification
characters shall contrast with their background. Address numbers shall be Arabic
numbers or alphabetical letters. Numbers shall not be spelled out. Each character shall be
a minimum of 4 inches (102 mm) high with a minimum stroke width of ½ inch (12.7 mm)
unless required to be larger by Section 502.1.2. When required by the fire code official,
address identification shall be provided in additional approved locations to facilitate
emergency response. Where access is by means of a private road and the building address
cannot be viewed from the public way, a monument, pole or other approved sign or
means shall be used to identify the structure. Address numbers shall be maintained.
502.1.1 Address illumination. Address identification required by Section 501.2 shall be
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illuminated.
502.1.2 Address identification size. Address numbers and letters shall be sized as follows:
1. When the structure is between thirty-six (36) and fifty (50) feet from the road
or other emergency means of access, a minimum of one-
required.
2. When the structure is fifty (50) or more feet from the road or other
required.
16.04.250 Section 702A Definitions Wildland-Urban Interface Fire Area.
Section 702A of Chapter 7A of the California Building Code is amended include the following
WILDLAND-URBAN INTERFACE FIRE AREA
WILDLAND-URBAN INTERFACE FIRE AREA is a geographical area identified by the State of
Sections 4201 through 4202 and Government Code Sections 51175 through 51189, or
other areas designated by the enforcing agency to beat a significant risk from wildfires.
Within the city limits of the City of Palo Alto, -Urban Fire Interface shall
also include all areas west of Interstate
Forestry.
16.04.260 Section 903.2 Automatic sprinkler systems, where required.
Section 903.2 of Chapter 9 the California Building Code is amended to read:
903.2 Automatic sprinkler systems, where required. Approved automatic sprinkler
systems in new buildings and structures and in existing modified buildings and structures,
shall be provided in the locations described in this section. Automatic fire sprinklers shall
be installed per the requirements set forth in Sections 903.2.1 through 903.2.18 and as
follows, whichever is the more restrictive:
1. An automatic sprinkler system shall be provided throughout all new buildings
and structures
Exception: New non-residential occupancies, buildings or structures that do
not exceed 350 square feet of building area and contain no plumbing fixtures.
2. An automatic sprinkler system shall be provided throughout all existing
buildings when modifications are made that create conditions described in
Sections 903.2.1 through 903.2.18, or that create an increase in fire area to
more than 3600 square feet or when the addition is equal or greater than 50%
of the existing building square footage whichever is more restrictive.
3. An automatic sprinkler system shall be provided throughout all new or altered
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basements used for storage/utility/occupancy or habitable space regardless of
size and throughout existing basements that are expanded by more than 50%.
If the addition or alteration is only the basement, then only the basement is
required to be fire sprinkler protected.
4. An automatic sprinkler system shall be installed throughout when either the
roof structure and/or exterior wall structure have been removed, altered,
and/or replaced by at least 50% of the existing structure.
5. An automatic sprinkler system shall be installed throughout when any change
in use or occupancy creating a more hazardous fire/life-safety condition, as
determined by the Fire Chief.
Exception: Spaces or areas in telecommunications buildings used exclusively
for telecommunications equipment, associated electrical power
distribution equipment, batteries and standby engines, provided that
those spaces or areas are equipped throughout with an automatic smoke
detection system in accordance with Section 907.2 and are separated from
the remainder of the building by not less than 1-hour fire barriers constructed
in accordance with Section 707 or not less than 2-hour horizontal
assemblies constructed in accordance with Section 711, or both.
16.04.270 Section 903.3.1.1 NFPA 13 sprinkler systems.
Section 903.3.1.1 of Chapter 9 of the California Building Code is amended to read:
903.3.1.1 NFPA 13 sprinkler systems. Where the provisions of this code require that a
building or portion thereof be equipped throughout with an automatic sprinkler system
in accordance with this section, sprinklers shall be installed throughout in accordance
with NFPA 13 and State and local requirements except as provided in Section 903.3.1.1.
1. For new buildings having no designated use or tenant, the minimum sprinkler
design density shall be Ordinary Hazard Group II/1500 square feet.
2. Where future use or tenant is determined to require a higher density, the
sprinkler system shall be augmented to meet the higher density.
3. Light hazard occupancy shall be hydraulically designed to a 1500 square feet
most remote area or as required by the fire code official
4. Laboratory areas within buildings shall be hydraulically designed to Ordinary
Hazard II density.
5. Parking areas where mechanical vehicle storage equipment is used shall be
hydraulically designed to Extra Hazard II density.
6. In multi-residential apartments, townhomes, and condominiums.
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16.04.280 Section 903.3.1.2 NFPA 13R sprinklersystems.
Section 903.3.1.2 of Chapter 9 of the California Building Code is amended to read:
903.3.1.2 NFPA 13R sprinkler systems. Where allowed in buildings of Group R
Occupancies, automatic sprinkler systems shall be installed throughout in accordance
with NFPA 13 and State and local standards.
16.04.290 Section 903.3.1.3 NFPA 13D sprinkler systems.
Section 903.3.1.3 of Chapter 9 of the California Building Code is amended to read:
903.3.1.3 NFPA 13D sprinkler systems. Where allowed, automatic sprinkler systems
installed in one-and two-family detached dwellings shall be installed throughout in
accordance with NFPA 13D and State and local standards. Fire sprinkler protection is
required under rear covered patios extending 4 feet perpendicular from the exterior of the
structure.
16.04.300 Section 903.3.1.3.1 Increase in fire sprinkler design criteria.
Section 903.3.1.3.1 of Chapter 9 of the California Building Code is added to read:
903.3.1.3.2 Increase in fire sprinkler design criteria. Structures determined by the fire
code official to have higher firefighting hazardous conditions or located in the Wildland-
Urban Interface Fire Area shall have an increase in fire sprinkler design criteria as
determined by the fire code official.
16.04.310 Section 903.4.3 Floor control valves.
Section 903.4.3 of Chapter 9 of the California Building Code is amended to read:
903.4.3 Floor control valves. Automatic sprinkler systems serving buildings two (2) or
more stories in height shall have valves installed so as to control the system
independently on each floor including basements.
16.04.320 Section 905.3.1 Height.
Section 905.3.1 of the California Building Code is amended to read:
905.3.1 Height. A Class I standpipe system shall be installed in buildings where the roof
edge/parapet is greater than 27 feet above the lowest level of fire apparatus access
roadway and in below grade levels.
16.04.330 Section 907.2.11.10 Replacement.
Section 907.2.11.10 of Chapter 9 of the California Building Code is added to read:
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907.2.11.10 Replacement. Single and multi-station smoke alarms and carbon monoxide
detectors shall be replaced 10 years after date of installation.
16.04.340 Section 909.20.8 Smoke control systems schedule.
Section 909.20.8 is added to the California Building Code to read as follows:
909.20.8 Smoke control systems schedule. A routine maintenance and operational
testing program shall be initiated immediately after the smoke control system has passed
the acceptance tests. A written schedule for routine maintenance and operational testing
shall be established and both shall occur at least annually.
16.04.350 Section 1008.3.3 Rooms and spaces.
Section 1008.3.3 of Chapter 10 of the California Building Code is amended to read:
1008.3.3 Rooms and spaces. In the event of power supply failure, an emergency
electrical system shall automatically illuminate all of the following areas:
1. Electrical equipment rooms.
2. Fire command centers.
3. Fire pump rooms.
4. Generator rooms.
5. Public restrooms.
16.04.360 Section 1031.2 Where required.
Section 1031.2 of Chapter 10 of the California Building Code is amended to read:
1031.2 Where required. In addition to the means of egress required by this chapter,
emergency escape and rescue openings shall be provided in Group R occupancies.
Basements and sleeping rooms below the fourth story above grade plane shall have not
fewer than one emergency escape and rescue opening in accordance with this section.
Where basements contain one or more sleeping rooms, an emergency escape and rescue
opening shall be required in each sleeping room but shall not be required in adjoining
areas of the basement. Such openings shall open directly into a public way or to a yard or
court that opens to a public way.
Exceptions:
1. In Group R-1 and R-2 occupancies constructed of Type I, Type IIA, Type IIIA
or Type IV construction equipped throughout with an approved automatic
sprinkler system in accordance with Section 903.3.1.1.
2. Group R-2.1 occupancies meeting the requirements for delayed egress in
accordance with Section 1010.2.13 may have operable windows that are
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breakable in sleeping rooms permanently restricted to a maximum of 4-inch
open position.
3. Emergency escape and rescue openings are not required from basements or
sleeping rooms that have an exit door or exit access door that opens directly
into a public way or to a yard, court or exterior egress balcony that opens to
a public way.
4. Storm shelters and basements used only to house mechanical equipment
not exceeding a total floor area of 200 square feet (18.58 m2)
16.04.370 Reserved.
16.04.380 Section 1205.3.4 Roof guards at courts.
Section 1205.3.4 of Chapter 12 of the California Building Code is added to read:
1205.3.4 Roof guards at courts. Roof openings into courts where not bounded on all sides
by walls shall be protected with guardrails. The top of the guards shall not be less than 42
inches in height. Required guards shall not have openings that allow passage of a sphere
twelve inches (12) in diameter from the walking surface to the required guard height.
Exception: Where the roof opening is greater than 600 square feet in area.
16.04.390 Section 1208.5 Dwelling unit and congregate residence superficial floor area.
Section 1208.5 of Chapter 12 of the California Building Code is added to read:
1208.5 Dwelling unit and congregate residence superficial floor area. Every dwelling unit
and congregate residence shall have at least one room which shall have not less than 120
square feet of superficial floor area. Every room which is used for both cooking and living
or both living and sleeping purposes shall have not less than 144 square feet of superficial
floor area. Every room used for sleeping purposes shall have not less than 70 square feet
of superficial floor area. When more than two persons occupy a room used for sleeping
purposes the required superficial floor area shall be increased at the rate of 50 square
feet for each occupant in excess of two. Guest rooms with cooking shall contain the
combined required superficial areas of a sleeping and a kitchen, but not less than 144
square feet. Other habitable rooms shall be not less than 70 square feet.
Notwithstanding any provision of this Section, children under the age of six shall not be
counted for purposes of determining whether a family with minor children complies with the
provisions of this Code.
For the purposes of this section, "superficial floor area" means the net floor area within the
enclosing walls of the room in which the ceiling height is not less than seven feet six
inches, excluding built-in equipment such as wardrobes, cabinets, kitchen units, or
fixtures which are not readily removable.
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16.04.400 Section 1503.2.1 Locations.
Section 1503.2.1 of Chapter 15 of the California Building Code is amended to read:
1503.2.1 Locations. Flashing shall be installed at wall and roof intersections, gutters,
wherever there is a change in roof slope or direction, and around roof openings. Where
flashing is of metal, the metal shall be corrosion resistant with a thickness of not less than
0.019 inches (0.483 mm) (e.g. no. 26 galvanized sheet) and shall be primed and painted.
16.04.410 Section 1612.1.1 Palo Alto Flood Hazard Regulations.
Section 1612.1.1 of Chapter 16 of the California Building Code is added to read:
1612.1.1 Palo Alto Flood Hazard Regulations. Notwithstanding the provisions of Section
1612.1, all construction or development within a flood hazard area (areas depicted as a
Special Flood Hazard Area on Flood Insurance Rate Maps published by the Federal
Emergency Management Agency) shall comply with the City of Palo Alto Flood Hazard
Regulations (Palo Alto Municipal Code Chapter 16.52). Where discrepancies exist
between the requirements of this code and said regulations, the more stringent
requirements shall apply.
16.04.420 Section 1613.5 Suspended ceilings.
Section 1613.5 of Chapter 16 of the California Building Code is added to read:
1613.5 Suspended ceilings. Minimum design and installation standards for suspended
ceilings shall be determined in accordance with the requirements of Section 2506.2.1 of
this Code and this section.
1613.5.1 Scope. This part contains special requirements for suspended ceilings and
lighting systems. Provisions of Section 13.5.6 of ASCE 7 shall apply except as modified
herein.
1613.5.2 General. The suspended ceilings and lighting systems shall be limited to 6 feet
(1828 mm) below the structural deck unless the lateral bracing is designed by a licensed
engineer or architect.
1613.5.3 Sprinkler heads. All sprinkler heads (drops) except fire-resistance-rated
floor/ceiling or roof/ceiling assemblies, shall be designed to allow for free movement of
the sprinkler pipes with oversize rings, sleeves, or adaptors through the ceiling tile.
Sprinkler heads and other penetrations shall have a 2-inch (50mm) oversize ring, sleeve,
or adapter through the ceiling tile to allow for free movement of at least 1 inch (25mm)
in all horizontal directions. Alternatively, a swing joint that can accommodate 1 inch (25
mm) of ceiling movement in all horizontal directions is permitted to be provided at the
top of the sprinkler head extension.
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Sprinkler heads penetrating fire-resistance-rated floor/ceiling or roof/ceiling assemblies
shall comply with Section 714 of this Code.
1613.5.4 Special requirements for means of egress. Suspended ceiling assemblies
located along means of egress serving an occupant load of 30 or more and at lobbies
accessory to Group A Occupancies shall comply with the following provisions.
1613.5.4.1 General. Ceiling suspension systems shall be connected and braced with
vertical hangers attached directly to the structural deck along the means of egress serving
an occupant load of 30 or more and at lobbies accessory to Group A Occupancies. Spacing
of vertical hangers shall not exceed 2 feet (610 mm) on center along the entire length of
the suspended ceiling assembly located along the means of egress or at the lobby.
1613.5.4.2 Assembly device. All lay-in panels shall be secured to the suspension ceiling
assembly with two hold-down clips minimum for each tile within a 4-foot (1219 mm)
radius of the exit lights and exit signs.
1613.5.4.3 Emergency systems. Independent supports and braces shall be provided for
light fixtures required for exit illumination. Power supply for exit illumination shall comply
with the requirements of Section 1008.3 of this Code.
1613.5.4.4 Supports for appendage. Separate support from the structural deck shall be
provided for all appendages such as light fixtures, air diffusers, exit signs, and similar
elements.
16.04.430 Section 1613.5 ASCE 7, Section 13.1.4 Seismic design requirements for
nonstructural components.
Section 1613.5 of Chapter 16 of the California Building Code is added to include the following:
1613.5 ASCE 7, Section 13.1.4 Seismic design requirements for nonstructural components.
Nonstructural elements must be seismically designed per ASCE 7, Section 13.1.4.
Exemptions. The following nonstructural components are exempted:
1. Furniture (except storage cabinets as noted in Table 13.5-1).
2. Temporary or movable equipment
3. Architectural components in Seismic Design Category B other than parapets
supported by bearing walls or shear walls provided that the component
importance factor, Ip, is equal to 1.0.
4. Mechanical and electrical components in Seismic Design Category B.
5. Mechanical and electrical components in Seismic Design Category C provided that
the component importance factor, Ip, is equal to 1.0.
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6. Mechanical and electrical components in Seismic Design Categories D, E, or F
where all of the following apply:
a. The component importance factor, Ip, is equal to 1.0;
b. The component is positively attached to the structures;
c. Flexible connections are provided at seismic separation joints and between the
component and associated ductwork, piping, and conduit; and either:
i. The component weighs 400 lb. (1,780 N) or less and has a center of mass located
4 ft (1.22 m) or less above the adjacent floor level; or
ii. The component weights 20 lb. (89 N) or less or, in the case of a distributed system,
5 lb./ft. (73 N/m) or less; or
iii. The component weights 200 lb. (890N) or less and is suspended from roof/floor
or mounted on wall.
16.04.440 Section 1705.3 Concrete construction.
Section 1705.3 of Chapter 17 of the California Building Code is amended to read:
1705.3 Concrete construction. The special inspections and tests of concrete construction
shall be as required by this section and Table 1705.3.
Exceptions: Special inspections and tests shall not be required for:
1. Isolated spread concrete footings of buildings three stories or less above grade
plane that are fully supported on earth or rock, where the structural design of
the footing is based on a specified compressive strength, c, no greater than
2,500 pound per square inch (psi) (17.2 Mpa).
2. Continuous concrete footings supporting walls of buildings three stories or less
above grade plane that are fully supported on earth or rock where:
2.1. The footings support walls of light-frame construction;
2.2. The footings are designed in accordance with Table 1809.7; or
2.3. The structural design of the footing is based on a specified compressive
c, no greater than 2,500 pounds per square inch (psi) (17.2
MPa), regardless of the compressive strength specified in the construction
documents or used in the footing construction.
3. Nonstructural concrete slabs supported directly on the ground, including pre-
stressed slabs on grade, where the effective pre-stress in the concrete is less
than 150 psi (1.03 MPa).
4. Concrete foundation walls constructed in accordance with Table 1807.1.6.2.
5. Concrete patios, driveways and sidewalks, on grade.
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16.04.450 Section 1803.2 Investigations required.
Section 1803.2 of Chapter 18 of the California Building Code is amended as to read:
1803.2 Investigations required. Geotechnical investigations shall be conducted in
accordance with Sections 1803.3 through 1803.5
Exceptions:
1. The building official or designee shall be permitted to waive the requirement
for a geotechnical investigation where satisfactory data from adjacent areas is
available that demonstrates an investigation is not necessary for any of the
conditions in Sections 1803.5.1 through 1803.5.6 and Sections
1803.5.10 and 1803.5.11.
2. Light-frame construction building utilizing the prescriptive continuous footings
per Table 1809.7 amended in section 16.04.300. For addition, the engineer of
record shall certify in writing that the existing foundation system matches the
proposed foundation system.
3. Accessories and minor additions may be exempted by the Building Official
or designee.
16.04.460 Section 1803.5.11 Seismic design categories C through F.
Section 1803.5.11 of Chapter 18 of the California Building Code is amended to read:
Section 1803.5.11 Seismic design categories C through F. For structures assigned
to Seismic Design Category C, D, E or F, a geotechnical investigation shall be conducted,
and shall include an evaluation of all of the following potential geologic and seismic
hazards:
1. Slope instability.
2. Liquefaction.
3. Total and differential settlement.
4. Surface displacement due to faulting or seismically induced lateral spreading
or lateral flow.
Exception: Refer to section 1803.2 exception.
16.04.470 Section 1809.7 Prescriptive footings for light-frame construction.
Section 1809.7 of Chapter 18 of the California Building Code is amended to read:
1809.7 Prescriptive footings for light-frame construction. Where a specific design is
not provided, concrete or masonry-unit footings supporting walls of light-frame
construction shall be permitted to be designed in accordance with Table 1809.7.
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TABLE 1809.7
Prescriptive Footings Supporting Walls of Light-Frame Constructionabcd
Number of Floors
Supported by the
Footing e
Thickness of
Foundation Wall
(inches)
Width of Footing
(inches)
Thickness of
Footing
(inches)
Depth of Foundation
Below Natural
Surface of Ground
or Finish
Grade (inches)
1 & 2 8 15 8 20
3 8 18 8 30
Group U Occupancies 8 12 8 12
ADU Conversionsf 8 12 8 12
a. Ground under the floor shall be permitted to be excavated to elevation of footing.
b. Interior stud-bearing walls shall be permitted to be supported by isolated footings.
Footing width and length shall be twice the width shown in this table, and footings shall
be spaced not more than 6 feet on center.
c. See Section 1905 for additional requirements for concrete footings of structures
assigned to Seismic Design Category C, D, E or F.
d. All foundations as required in the above Table shall be continuous and have a minimum
of three #4 bars of reinforcing steel, except for one story, detached accessory buildings
of Group U occupancy where two bars are required.
e. Footings shall be permitted to support a roof in addition to the stipulated number of
floors. Footings supporting roof only shall be as required for supporting one floor.
f. If existing detached accessory building is being converted to an Accessory Dwelling Unit
(ADU) and the existing foundation is being utilized, then a designer, architect or engineer
shall provide a letter that the existing foundation complies with the conditions above and
is deemed structurally sound.
16.04.480 Section 1809.8 Plain concrete footings.
Section 1809.8 of Chapter 18 of the California Building Code is deleted.
16.04.490 Section 1901.2 Plain and reinforced concrete.
Section 1901.2 of Chapter 19 of the California Building Code is amended to read:
1901.2 Plain and reinforced concrete. Structural concrete shall be designed and
constructed in accordance with the requirements of this chapter and ACI 318 as amended
in section 1905 of this code and PAMC 16.14.240. Except for the provisions of Sections
1904 and 1907, the design and construction of slabs on grade shall not be governed by
this chapter unless they transmit vertical loads or lateral forces from other parts of the
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structure to the soil.
16.04.500 Section 1905.1.7 ACI 318, Section 14.1.4.
Section 1905.1.7 of Chapter 19 of the California Building Code is amended to read:
1905.1.7 ACI 318, Section 14.1.4. Delete ACI 318, Section 14.1.4, and replace with the
following:
14.1.4 - Plain concrete in structures assigned to Seismic Design Category C, D, E or F.
14.1.4.1- Structures assigned to Seismic Design Category C, D, E or F shall not have
elements of structural plain concrete, except as follows:
(a) Left intentionally blank.
(b) Isolated footings of plain concrete supporting pedestals or columns are
permitted, provided the projection of the footing beyond the face of the
supported member does not exceed the footing thickness.
(c) Plain concrete footings supporting walls are permitted, provided the footings
have at least three continuous longitudinal reinforcing bars not smaller than
No. 4, with a total area of not less than 0.002 times the gross cross-sectional
area of the footing except for one story, detached accessory buildings of Group
U occupancy where two bars are required. A minimum of one bar shall be
provided at the top and bottom of the footing. Continuity of reinforcement
shall be provided at corners and intersections.
16.04.510 SECTION 1906 FOOTINGS FOR LIGHT-FRAME CONSTRUCTION
Section 1906 of Chapter 19 of the California Building Code is deleted.
16.04.520 Section 1906.1 Plain concrete footings.
Section 1906.1 of Chapter 19 of the California Building Code is deleted.
16.04.530 Section 1907.1 General.
Section 1907.1 of Chapter 19 of the California Building Code is amended to read:
1907.1 General. The thickness of concrete floor slabs supported directly on the ground
shall be not less than 3 ½ inches (89mm). A 6-mil (0.006 inches; 0.15mm) polyethylene
vapor retarder with joints lapped not less than 6 inches (152 mm) shall be placed between
the base course or subgrade and the concrete floor slab, or other approved equivalent
methods or materials shall be used to retard vapor transmission through the floor slab.
Slabs shall have 6x6-10/10 wire mesh or equate a mid-height.
Exceptions: A vapor retarder is not required:
1. For detached [. . .]
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16.04.540 Section 2305.4 Hold-down connections.
Section 2305.4 of Chapter 23 of the California Building Code is added to read:
2305.4 Hold-down connectors. In Seismic Design Category D, E or F, hold-down
connectors shall be designed to resist shear wall overturning moments using approved
cyclic load values or 75 percent of the allowable seismic load values that do not consider
cyclic loading of the product. Connector bolts into wood framing shall require steel plate
washers on the post on the opposite side of the anchorage device. Plate size shall be a
minimum of 0.229 inch by 3 inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size.
Hold-down connectors shall be tightened to finger tight plus one half (1/2) wrench turn
just prior to covering the wall framing.
16.04.550 Section 2307.2 Wood-framed shear walls.
Section 2307.2 of Chapter 23 of the California Building Code is added to read:
Section 2307.2 Wood-frame shear walls. Wood-frame shear walls shall be designed and
constructed in accordance with Section 2306.3 as applicable.
16.04.560 Section 2308.6.4 Braced wall panel construction.
Section 2308.6.4 of Chapter 23 of the California Building Code is amended to read:
2308.6.4 Braced wall panel construction. For Methods DWB, WSP, SFB, PBS, PCP and HPS,
each panel must be not less than 48 inches (1219 mm) in length, covering three stud
spaces where studs are spaced 16 inches (406 mm) on center and covering two stud
spaces where studs are spaces 24 inches (610 mm) on center. Braced wall panels less than
48 inches (1219 mm) in length shall not contribute toward the amount of required
bracing. Braced wall panels that are longer than the required length shall be credited for
their actual length.
Vertical joints of panel sheathing shall occur over studs and adjacent panel joints shall be
nailed to common framing members. Horizontal joints shall occur over blocking or other
framing equal in size to the studding except were waived by the installation requirements
for the specific sheathing materials. Sole plates shall be nailed to the floor framing in
accordance with Section 2308.7 and top plates shall be connected to the framing above
in accordance with Section 2308.6.7.2. Where joists are perpendicular to braced wall lines
above, blocking shall be provided under and in line with the braced wall panels.
16.04.570 Section 2308.6.5 Alternative bracing.
Section 2308.6.5 of Chapter 23 of the California Building Code is amended to read:
2308.6.5 Alternative bracing. An alternate braced wall (ABW) or a portal frame with hold-
downs (PFH) described in this section is permitted to substitute for a 48-inch (1219 mm)
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braced wall panel of Method DWB, WSP, SFB, PCP or HPS.
16.04.580 TABLE 2308.6.1 WALL BRACING REQUIREMENTS.
TABLE 2308.6.1 of Chapter 23 of the California Building Code is amended to read:
b. See section 2306.3 for full description of bracing methods. Method GB is prohibited in
Seismic Design Categories D & E.
16.04.590 TABLE 2308.6.3(1) BRACING METHODS.
TABLE 2308.6.3(1) Bracing Methods of Chapter 23 of the California Building Code is amended by
adding footnote as follows:
TABLE 2308.6.3(1) BRACING METHODS
METHODS,
MATERIAL b
MINIMUM
THICKNESS FIGURE CONNECTION CRITERIA a
Fasteners Spacing
b. Method GB is prohibited in Seismic Design Categories D & E.
16.04.600 Section 2308.6.9 Attachment of sheathing.
Section 2308.6.9 of Chapter 23 of the California Building Code is amended to read:
2308.6.9 Attachment of sheathing. Fastening of braced wall panel sheathing shall not be
less than that prescribed in Table 2308.6.1 or 2304.10.2. Wall sheathing shall not be
attached to framing members by adhesives. Staple fasteners in Table 2304.10.1 shall not
be used to resist or transfer seismic forces in structures assigned to Seismic Design
Category D, E, or F unless the allowable shear values are substantiated by cyclic testing
and approved by the Building Official or designee.
All braced wall panels shall extend to the roof sheathing and shall be attached to parallel roof
rafters or blocking above with framing clips (18 gauge minimum) spaced at maximum 24 inches
on center with four 8d nails per leg (total eight-8d nails per clip). Braced wall panels shall be
laterally braced at each top corner and at maximum 24-inch intervals along the top plate of
discontinuous vertical framing.
16.04.610 SECTION 2505 SHEAR WALL CONSTRUCTION.
Section 2505 Chapter 25 of the California Building Code is deleted in its entirety including its
subsections.
16.04.620 Section 2508.6 Horizontal gypsum board or gypsum panel product diaphragm
ceilings.
Section 2508.6 of the California Building Code is deleted in its entirety including its subsections.
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16.04.630 Chapter 31B Public Pools.
Chapter 31B of the California Building Code has been adopted in its entirety.
16.04.640 Section 3304.1 Excavation and fill.
Section 3304.1 of Chapter 33 of the California Building Code is amended to read:
3304.1 Excavation and fill. Excavation and fill for buildings and structures shall be
constructed or protected so as not to endanger life or property. Stumps and roots shall be
removed from the soil to a depth of not less than 12 inches (305mm) below the surface of
the ground in the area to be occupied by the building. Wood forms that have been used in
placing concrete, if within the ground or between foundation sills and the ground, shall be
removed before a building is occupied or used for any purpose. Wooden stakes shall not be
embedded in concrete. Before completion, loose or casual wood shall be removed from
direct contact with the ground under the building.
SECTION 2. Chapter 16.19, California Historical Building Code and Existing Building Code, of Title
16 (Building Regulations) of the Palo Alto Municipal Code is added to read as follows:
CHAPTER 16.19
CALIFORNIA HISTORICAL BUILDING CODE,
CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 8
and
CALIFORNIA EXISTING BUILDING CODE,
CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 10
Sections
16.04.010 2022 California Historical Building Code, Title 24, Part 8 adopted.
16.19.020 2022 California Existing Building Code, Title 24, Part 10 adopted and amended.
16.19.030 Cross - References to California Existing Building Code.
16.19.040 Local Amendments.
16.19.050 101.6 Appendices.
16.19.060 Administration & Enforcement of 2022 California Existing Building Code
16.19.070 Adoption of 2022 California Existing Building Code Chapter 1, Division II Scope
and Administration
16.19.080 Section 101.1 Title.
16.19.090 Section 324 Dwelling unit and congregate residence superficial floor area.
16.19.100 Section 503.19 Suspended ceiling systems.
16.19.110 Section 503.20 Mechanical and electrical equipment in seismic design categories
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0160087_20221102_ay16
D, E or F.
16.19.120 Section 405.2.3.1 Seismic evaluation and design procedures for repairs.
16.19.010 2022 California Historical Building Code, Title 24, Part 8 adopted.
The California Historical Building Code, 2022 Edition, Title 24, Part 8 (authorized by Health and
Safety Code Sections 18950 through 18961), which provides alternative building regulations for
the rehabilitation, preservation, restoration, or relocation of designated historic buildings, is
adopted and hereby incorporated in this Chapter by reference and made a part hereof the same as
if fully set forth herein.
One copy of the California Historical Building Code, 2022 Edition, has been filed for use and
examination of the public in the Office of the Chief Building Official of the City of Palo Alto.
16.19.020 2022 California Existing Building Code, Title 24, Part 10 adopted and amended.
The California Existing Building Code, 2022 Edition, Title 24, Part 10 of the California Code of
Regulations, which provides alternative building regulations for the rehabilitation, preservation
restoration or relocation of existing buildings, together with those omissions, amendments,
exceptions, and additions thereto, is adopted and hereby incorporated in this Chapter by
reference and made a part hereof the same as if fully set forth herein.
One copy of the California Existing Building Code, 2022 Edition, has been filed for use and
examination of the public in the Office of the Chief Building Official of the City of Palo Alto.
16.19.030 Cross - References to California Existing Building Code.
The provisions of this Chapter contain cross-references to the provisions of the California Existing
Building Code, 2022 Edition, in order to facilitate reference and comparison to those provisions.
16.19.040 Local Amendments.
The provisions of this Chapter shall constitute local amendments to the cross-referenced provisions
of the California Existing Building Code, 2022 Edition, and shall be deemed to replace the cross-
referenced sections of said Code with the respective provisions set forth in this Chapter.
16.19.050 101.6 Appendices.
Section 101.6 of Chapter 1 of the California Existing Building Code is amended to read:
2022 California Existing Building Code and International Existing Building Code Appendix
Chapters Adopted.
The following Appendix Chapters of the California Existing Building Code (CEBC), 2022
Edition, and International Existing Building Code (IEBC), 2021 Edition, are adopted and
hereby incorporated in this Chapter be reference and made a part hereof the same as if fully
set forth herein:
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A. CEBC Appendix A1 Seismic Strengthening Provisions for Unreinforced Masonry
Bearing Wall Buildings
B. CEBC Appendix Chapter A2 Earthquake Hazard Reduction in Existing Reinforced
Concrete and Reinforced Masonry Wall Buildings with Flexible Diaphragms
C. CEBC Appendix A3 Prescriptive Provisions for Seismic Strengthening of Cripple
Walls and Sill Plate Anchorage of Light, Wood-Frame Residential Buildings
D. CEBC Appendix A4 Earthquake Risk Reduction in Wood-Frame Residential
Buildings with Soft, Weak or Open Front Walls
E. CEBC Appendix A5 Referenced Standards
16.19.060 Administration & Enforcement of 2022 California Existing Building Code
Administration and enforcement of this code shall be governed by Chapter 1, Division II of the
2022 California Building Code as amended by Palo Alto Municipal Code Chapter 16.04.
16.19.070 Adoption of 2022 California Existing Building Code Chapter 1, Division II Scope
and Administration
Chapter 1, Division II, Parts 1 and 2 of the 2022 California Existing Building Code is adopted by
the City of Palo Alto to supplement, to the extent it does not conflict with, Chapter 1, Division II
of the 2022 California Building Code, as amended.
16.19.080 Section 101.1 Title.
Section 101.1 of Chapter 1 of the California Existing Building Code is amended to read:
101.1 Title. These regulations shall be known as the Existing Building Code of City of Palo
Alto .
16.19.090 Section 324 Dwelling unit and congregate residence superficial floor area.
Section 324 of Chapter 3 of the California Existing Building Code is added to read:
324 Dwelling unit and congregate residence superficial floor area. Every dwelling unit and
congregate residence shall have at least one room which shall have not less than 120 square
feet of superficial floor area. Every room which is used for both cooking and living or both living
and sleeping purposes shall have not less than 144 square feet of superficial floor area. Every
room used for sleeping purposes shall have not less than 70 square feet of superficial floor
area. When more than two persons occupy a room used for sleeping purposes the required
superficial floor area shall be increased at the rate of 50 square feet for each occupant in excess
of two. Guest rooms with cooking shall contain the combined required superficial areas of a
sleeping and a kitchen, but not less than 144 square feet. Other habitable rooms shall be not
less than 70 square feet.
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Notwithstanding any provision of this Section, children under the age of six shall not be
counted for purposes of determining whether a family with minor children complies with the
provisions of this Code.
For the purposes of this section, "superficial floor area" means the net floor area within the
enclosing walls of the room in which the ceiling height is not less than seven feet six
inches, excluding built-in equipment such as wardrobes, cabinets, kitchen units, or
fixtures which are not readily removable.
16.19.100 Section 503.19 Suspended ceiling systems.
Section 503.19 of Chapter 5 the California Existing Building Code is added to read:
503.19 Suspended ceiling systems. In existing buildings or structures, when a permit is
issued for alterations or repairs, the existing suspended ceiling system within the area of
the alterations or repairs shall comply with ASCE 7-16 Section 13.5.6.
16.19.110 Section 503.20 Mechanical and electrical equipment in seismic design categories
D, E or F.
Section 503.20 of Chapter 5 of the California Existing Building Code is added to read:
503.20 Mechanical and electrical equipment in seismic design categories D, E or F. In
existing buildings or structures, when a permit is issued for alteration or repairs, the existing
mechanical and electrical equipment on the area of the roof shall comply with ASCE 7-16
Section 13.4 Nonstructural Component Anchorage.
16.19.120 Section 405.2.3.1 Seismic evaluation and design procedures for repairs.
Section 405.2.3.1 of Chapter 5 of the California Existing Building Code is amended to read:
405.2.3.1 Evaluation and design procedures. The building shall be evaluated by a
registered design professional, and the evaluation findings shall be submitted to the code
official. The evaluation shall establish whether the damaged building, if repaired to its
pre-damage state, would comply with the provisions of the California Building Code for
load combinations that include wind or earthquake effects, except that the seismic forces
shall be reduced seismic forces. Evaluation for earthquake loads shall be required if the
substantial structural damage was caused by or related to earthquake effects or if the
building is in Seismic Design Category C, D, E or F. The seismic evaluation and design shall
be based on the procedures specified in the building code, ASCE 41 Seismic Evaluation
and Upgrade of Existing Buildings. The procedures contained in Appendix A of the
International Existing Building Code (IEBC) shall be permitted to be used as specified in
Section 405.2.3.1.
Wind loads for this evaluation shall be those prescribed in Section 1609.
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405.2.3.1.1 CEBC level seismic forces. When seismic forces are required to meet the
building code level, they shall be one of the following:
1. One hundred percent of the values in the building code. The R factor used for
analysis in accordance with Chapter 16 of the building code shall be the R factor
specified for structural systems classified as "Ordinary" unless it can be
demonstrated that the structural system satisfies the proportioning and
detailing requirements for systems classified as "intermediate" or "special".
2. Forces corresponding to BSE-1 and BSE-2 Earthquake Hazard Levels defined in
ASCE 41. Where ASCE 41 is used, the corresponding performance levels shall
be those shown in Table 405.2.3.1.
3. Forces corresponding to BSE-1 and BSE-2 Earthquake Hazard Levels defined in
ASCE 41. Where ASCE 41 is used, the corresponding performance levels shall
be those shown in Table 405.2.3.1.
TABLE 405.2.3.1
ASCE 41 PERFORMANCE LEVELS
RISK CATEGORY (BASED
ON CBC TABLE 1604.5)
PERFORMANCE LEVEL FOR USE WITH
ASCE 41 BSE-1 EARTHQUAKE HAZARD
LEVEL
PERFORMANCE LEVEL FOR USE
WITH ASCE 41 BSE-2
EARTHQUAKE HAZARD LEVEL *
I Life Safety (LS) Collapse Prevention (CP)
II Life Safety (LS) Collapse Prevention (CP)
III Damage Control Limited Safety
IV Immediate Occupancy (IO) Life Safety (LS)
* Only applicable when Tier 3 procedure is used.
405.2.3.1.2 Reduced CEBC level seismic forces. When seismic forces are permitted to
meet reduced building code levels, they shall be one of the following:
1. Seventy-five percent of the forces prescribed in the building code. The R factor
used for analysis in accordance with Chapter 16 of the building code shall be
the R factor as specified in Section 405.2.3.1.1.
2. In accordance with the California Existing Building Code and applicable
chapters in Appendix A of the International Existing Building Code, as specified
in Items (a.) through (e.) below. Structures or portions of structures that
comply with the requirements of the applicable chapter in Appendix A shall be
deemed to comply with the requirements for reduced building code force
levels.
a. The seismic evaluation and design of unreinforced masonry bearing wall
buildings in Risk Category I or II are permitted to be based on the
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0160087_20221102_ay16
procedures specified in CEBC Appendix ChapterA1.
b. Seismic evaluation and design of the wall anchorage system in reinforced
concrete and reinforced masonry wall buildings with flexible diaphragms
in Risk Category I or II are permitted to be based on the procedures
specified in IEBC Appendix Chapter A2.
c. Seismic evaluation and design of cripple walls and sill plate anchorage in
residential buildings of light-frame wood construction in Risk Category I or
II are permitted to be based on the procedures specified in CEBC Appendix
Chapter A3
d. Seismic evaluation and design of soft, weak, or open-front wall conditions
in multi-unit residential buildings of wood construction in Risk Category I
or II are permitted to be based on the procedures specified in CEBC
Appendix Chapter A4.
e. Seismic evaluation and design of concrete buildings and concrete with
masonry infill buildings in all risk categories are permitted to be based on
the procedures specified in IEBC Appendix Chapter A5.
Those associated with the BSE-1 Earthquake Hazard Level defined in ASCE 41 and the
performance level as shown in Table 405.2.3.1. Where ASCE 41 is used, the design spectral
response acceleration parameters SXS and SX1 shall not be taken less than seventy-five percent
of the respective design spectral response acceleration parameters SDS and SD1 defined by the
California Building Code and its reference standards.
SECTION 3. The Council adopts the findings for local amendments to the California Building Code,
erence.
SECTION 4. The Council adopts the findings for local amendments to the California Existing
SECTION 5. The Council finds that this ordinance is exempt from the provisions of the California
Environmental Quality Act pursuant to Section 15061 of the CEQA Guidelines, because
it can be seen with certainty that there is no possibility that the amendments herein adopted will
have a significant effect on the environment.
//
//
//
//
//
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SECTION 6. This Ordinance shall be effective on the thirty-first day after the date of its adoption.
INTRODUCED:
PASSED:
AYES:
NOES:
ABSENT:
ABSTENTIONS:
ATTEST:
____________________________ ____________________________
City Clerk Mayor
APPROVED AS TO FORM: APPROVED:
____________________________ ____________________________
Assistant City Attorney City Manager
____________________________
Director of Planning and
Development Services
____________________________
Director of Administrative Services
37
0160087_20221102_ay16
Exhibit A
FINDINGS FOR LOCAL AMENDMENTS TO CALIFORNIA BUILDING CODE,
TITLE 24, PART 2, VOLUMES 1 AND 2
Section 17958 of the California Health and Safety Code provides that the City may make changes
to the provisions of the California Building Standards Code. Sections 17958.5 and 17958.7 of the
Health and Safety Code require that for each proposed local change to those provisions of the
California Building Standards Code which regulate buildings used for human habitation, the City
Council must make findings supporting its determination that each such local change is reasonably
necessary because of local climatic, geological, or topographical conditions.
Local building regulations having the effect of amending the uniform codes, which were adopted
by the City prior to November 23, 1970, were unaffected by the regulations of Sections 17958,
17958.5 and 17958.7 of the Health and Safety Code. Therefore, amendments to the uniform
codes which were adopted by the City Council prior to November 23, 1970 and have been carried
through from year to year without significant change, need no required findings. Also,
amendments to provisions not regulating buildings used for human habitation do not require
findings.
Code: California Building Code, Title 24, Part 2, Volumes 1 and 2
Chapter(s),
Section(s),
Table(s),
Appendices
Title Added Amended Deleted Justification
(See below
for keys)
Ch. 1, Div. II SCOPE OF ADMINISTRATION A
Part 1 Scope of Application A
Part 2 Administration and Enforcement A
101.1 Title A
101.2.1 Appendices A
101.4 Referenced codes A
101.4.8 Historical Buildings A
101.4.9 Electrical A
101.4.10 Residential Buildings A
101.4.11 Green Building Standards A
101.4.12 International Swimming and Spa Code A
103.1 Creation of enforcement agency A
103.2 Appointment A
103.3 Deputies A
104.2.1 Determination of substantially improved
or substantially damaged existing buildings
and structures in flood hazard zones
C, T
104.10.1 Flood hazard area C, G, T
38
0160087_20221102_ay16
105.2 Work exempt from work A
105.3.2 Time limitation of applications A
105.5 Expiration A
105.5.1 Term limits for permits A
106.1 Live load posted G , T
109.6 Refunds A
109.7 Re-Inspection fees A
110.2.1 Preliminary accessibility compliance
inspection
A
110.3.3 Lowest floor elevation A
111.1 Use and occupancy A
111.1.1 Change of occupancy or tenancy A
111.3 Temporary occupancy A
111.5 Posting A
113.1 Means of Appeals A
114.1 Unlawful acts A
114.2 Criminal enforcement authority A
115.1 Authority A
115.2 Issuance A
115.3 Unlawful continuance A
115.4 Removal of posted stop work order A
115.5 Response required A
115.6 Permit application required A
115.7 Stop work order penalty A
502.1 Address identification T
502.1.1 Address illumination T
502.1.2 Address identification size T
702A WILDLAND-URBAN INTERFACE FIRE AREA -
Definitions
C, T
903.2 Automatic sprinkler system, where
required
903.3.1.1 NFPA 13 sprinkler systems G, T
903.3.1.2 NFPA 13R sprinkler systems G, T
903.3.1.3 NFPA 13D sprinkler systems G, T
903.3.1.3.1 Increase in fire sprinkler design criteria G, T
903.4.3 Floor control valves G, T
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0160087_20221102_ay16
905.3.1 Height G, T
907.2.11.10 Replacement G, T
909.20.7 Smoke control systems G,T
1031.2 Where required G, T
1008.3.3 Rooms and spaces G, T
1205.3.4 Roof guards at courts G
1208.5 Dwelling unit and congregate residence
superficial floor area
A, G
1503.2.1 Locations C
1612.1.1 Palo Alto Flood Hazard Regulations C, T
1613.5 Suspended ceilings G
1613.5.1 Scope G
1613.5.2 General G
1613.5.3 Sprinkler heads G
1613.5.4 Special requirements for means of egress G
1613.5.4.1 General G
1613.5.4.2 Assembly device G
1613.5.4.3 Emergency systems G
1613.5.4.4 Supports for appendage G
1613.5 ASCE 7, Section 13.1.4 Seismic design
requirements for nonstructural
components
G
1705.3 Concrete construction G
1803.2 Investigations required G
1803.5.11 Seismic design categories C through F G, T
1809.7 Prescriptive footings for light-frame
construction
G, T
Tbl. 1809.7 Prescriptive footings for light-frame
construction
G, T
1809.8 Plain concrete footings G, T
1901.2 Plain and reinforced concrete G, T
1905.1.7 ACI 318, Section 14.1.4 G, T
1906 FOOTINGS FOR LIGHT-FRAME
CONSTRUCTION
G, T
1906.1 Plain concrete footings G, T
1907.1 General G, T
2305.4 Hold-down connections G, T
40
0160087_20221102_ay16
2307.2 Wood-framed shear walls G, T
2308.6.4 Braced wall panel construction G, T
2308.6.5 Alternative bracing G, T
Tbl.
2308.6.1
Wall Bracing Requirements.
G, T
Tbl.
2308.6.3(1)
Bracing Methods
G, T
2308.6.9 Attachment of sheathing G, T
2505 SHEAR WALL CONSTRUCTION G, T
2508.6 Horizontal gypsum board or gypsum panel
product diaphragm ceilings
G, T
Ch. 31B Public Pools G, T
3304.1 Excavation and fill G, T
Appx. I Patio Covers A, G
Appx. J Grading (Section J109.4 Drainage across
property lines)
G, T
Appx. P Emergency Housing A, C, G, T
41
0160087_20221102_ay16
Exhibit B
FINDINGS FOR LOCAL AMENDMENTS TO CALIORNIA EXISTING BUILDING CODE,
Title 24, Part 10
Section 17958 of the California Health and Safety Code provides that the City may make changes
to the provisions of the California Building Standards Code. Sections 17958.5 and 17958.7 of the
Health and Safety Code require that for each proposed local change to those provisions of the
California Building Standards Code which regulate buildings used for human habitation, the City
Council must make findings supporting its determination that each such local change is reasonably
necessary because of local climatic, geological, or topographical conditions.
Local building regulations having the effect of amending the uniform codes, which were adopted
by the City prior to November 23, 1970, were unaffected by the regulations of Sections 17958,
17958.5 and 17958.7 of the Health and Safety Code. Therefore, amendments to the uniform
codes which were adopted by the City Council prior to November 23, 1970 and have been carried
through from year to year without significant change, need no required findings. Also,
amendments to provisions not regulating buildings used for human habitation do not require
findings.
Code: California Existing Building Code, Title, 24, Part 10
Chapter(s),
Section(s),
Table(s),
Appendices
Title Added Amended Replaced Justification
(See below for keys)
101.6 Appendices A
Ch. 1, Div. II Scope and Administration A
101.1 Title A
324 Dwelling unit and congregate
residence superficial floor area.
A, G
503.19 Suspended ceiling system G
503.20 Mechanical and electrical
equipment in seismic design
categories D, E or F
G
405.2.3.1 405.2.3.1 Seismic evaluation and
design procedures for repairs
G
405.2.3.1.1 CEBC level seismic forces G
Tbl.
405.2.3.1
ASCE 41 PERFORMANCE LEVELS G
405.2.3.1.2 Reduced CEBC level seismic forces G
Appx. A1 Seismic Strengthening Provisions
for Unreinforced Masonry Bearing
Wall Buildings
G, T
42
0160087_20221102_ay16
Appx. A2 Earthquake Hazard Reduction in
Existing Reinforced Concrete and
Reinforced Masonry Wall Buildings
with Flexible Diaphragms
G, T
Appx. A3 Prescriptive Provisions for Seismic
Strengthening of Cripple Walls and
Sill Plate Anchorage of Light, Wood-
Frame Residential Buildings
G, T
Appx. A4 Earthquake Risk Reduction in Wood-
Frame Residential Buildings with
Soft, Weak or Open Front Walls
G, T
Appx. A5 Referenced Standards G, T
43
0160087_20221102_ay16
Key to Justification for Amendments to Title 24 of the California Code of Regulations
A This is an administrative amendment to clarify and establish civil and administrative
procedures, regulations, or rules to enforce and administer the activities by the Palo Alto Building
Inspection Department. These administrative amendments do not need to meet HSC
18941.5/17958/13869 per HSC 18909(c).
C This amendment is justified based on a local climatic condition. The seasonal climatic
conditions during the late summer and fall create severe fire hazards to the public health and
welfare in the City. The hot, dry weather frequently results in wild land fires on the brush covered
slopes west of Interstate 280. The aforementioned conditions combined with the geological
characteristics of the hills within the City create hazardous conditions for which departure from
California Building Standards Code is required.
G This amendment is justified based on a local geological condition. The City of Palo Alto is
subject to earthquake hazard caused by its proximity to San Andreas fault. This fault runs from
Hollister, through the Santa Cruz Mountains, epicenter of the 1989 Loma Prieta earthquake, then
on up the San Francisco Peninsula, then offshore at Daly City near Mussel Rock. This is the
approximate location of the epicenter of the 1906 San Francisco earthquake. The other fault is
Hayward Fault. This fault is about 74 mi long, situated mainly along the western base of the hills
on the east side of San Francisco Bay. Both faults are considered major Northern California
earthquake faults which may experience rupture at any time. Thus, because the City is within a
seismic area which includes these earthquake faults, the modifications and changes cited herein
are designed to better limit property damage as a result of seismic activity and to establish
criteria for repair of damaged properties following a local emergency.
T The City of Palo Alto topography includes hillsides with narrow and winding access, which
makes timely response by fire suppression and emergency response vehicles difficult. Palo Alto
is contiguous with the San Francisco Bay, resulting in a natural receptor for storm and wastewater
run-off. Also, the City of Palo Alto is located in an area that is potentially susceptible to
liquefaction during a major earthquake. The surface condition consists mostly of stiff to dense
sandy clay, which is highly plastic and expansive in nature. The aforementioned conditions within
the City create hazardous conditions for which departure from California Building Standards Code
is warranted.
Certificate Of Completion
Envelope Id: D7A3D7A742E54B7B93989ECE93D9649F Status: Completed
Subject: DocuSign: Adoption of 9 Ordinances Related to the 2022 CA Building Codes
Source Envelope:
Document Pages: 173 Signatures: 55 Envelope Originator:
Certificate Pages: 3 Initials: 0 Vinhloc Nguyen
AutoNav: Enabled
EnvelopeId Stamping: Enabled
Time Zone: (UTC-08:00) Pacific Time (US & Canada)
250 Hamilton Ave
Palo Alto , CA 94301
Vinhloc.Nguyen@CityofPaloAlto.org
IP Address: 199.33.32.254
Record Tracking
Status: Original
11/21/2022 11:02:42 AM
Holder: Vinhloc Nguyen
Vinhloc.Nguyen@CityofPaloAlto.org
Location: DocuSign
Security Appliance Status: Connected Pool: StateLocal
Storage Appliance Status: Connected Pool: City of Palo Alto Location: DocuSign
Signer Events Signature Timestamp
Albert Yang
Albert.Yang@CityofPaloAlto.org
Assistant City Attorney
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 97.126.59.62
Sent: 11/21/2022 11:11:03 AM
Viewed: 11/21/2022 2:49:57 PM
Signed: 11/21/2022 2:51:09 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Geoffrey Blackshire
Geoffrey.Blackshire@CityofPaloAlto.org
Fire Chief
Fire Services
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 11/21/2022 2:51:19 PM
Resent: 11/29/2022 3:43:47 PM
Viewed: 11/29/2022 3:54:58 PM
Signed: 11/29/2022 3:56:24 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Brad Eggleston
Brad.Eggleston@CityofPaloAlto.org
Director of Public Works
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 11/29/2022 3:56:35 PM
Viewed: 11/29/2022 5:45:39 PM
Signed: 11/29/2022 5:46:20 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Kiely Nose
Kiely.Nose@CityofPaloAlto.org
Director, Administrative Services/CFO
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Uploaded Signature Image
Using IP Address: 73.162.77.140
Sent: 11/29/2022 5:46:29 PM
Viewed: 12/1/2022 7:25:34 AM
Signed: 12/1/2022 7:26:13 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Signer Events Signature Timestamp
Jonathan Lait
Jonathan.Lait@CityofPaloAlto.org
Interim Director Planning and Community
Environment
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Uploaded Signature Image
Using IP Address: 99.88.42.180
Sent: 12/1/2022 7:26:27 AM
Viewed: 12/1/2022 11:12:56 AM
Signed: 12/1/2022 11:16:47 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Ed Shikada
Ed.Shikada@CityofPaloAlto.org
Ed Shikada, City Manager
City of Palo Alto
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 12/1/2022 11:16:58 AM
Viewed: 12/1/2022 1:50:09 PM
Signed: 12/1/2022 1:50:45 PM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Patrick Burt
pat@patburt.org
Mr
Security Level: Email, Account Authentication
(None)Signature Adoption: Pre-selected Style
Using IP Address: 98.37.159.0
Sent: 12/1/2022 1:50:55 PM
Resent: 12/2/2022 10:23:28 AM
Viewed: 12/2/2022 11:49:03 AM
Signed: 12/2/2022 11:49:57 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
Lesley Milton
Lesley.Milton@CityofPaloAlto.org
City Clerk
City Clerk
Security Level: Email, Account Authentication
(None)
Signature Adoption: Pre-selected Style
Using IP Address: 199.33.32.254
Sent: 12/2/2022 11:50:10 AM
Viewed: 12/2/2022 11:55:06 AM
Signed: 12/2/2022 11:55:38 AM
Electronic Record and Signature Disclosure:
Not Offered via DocuSign
In Person Signer Events Signature Timestamp
Editor Delivery Events Status Timestamp
Agent Delivery Events Status Timestamp
Intermediary Delivery Events Status Timestamp
Certified Delivery Events Status Timestamp
Carbon Copy Events Status Timestamp
Witness Events Signature Timestamp
Notary Events Signature Timestamp
Envelope Summary Events Status Timestamps
Envelope Sent Hashed/Encrypted 11/21/2022 11:11:03 AM
Certified Delivered Security Checked 12/2/2022 11:55:06 AM
Envelope Summary Events Status Timestamps
Signing Complete Security Checked 12/2/2022 11:55:38 AM
Completed Security Checked 12/2/2022 11:55:38 AM
Payment Events Status Timestamps