HomeMy WebLinkAboutStaff Report 2305-152642.Accessory Dwelling Unit (ADU) Quarterly Report (Quarter 1 of Calendar Year 2023)
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City Council
Staff Report
From: City Manager
Report Type: INFORMATION REPORTS
Lead Department: Planning and Development Services
Meeting Date: June 19, 2023
Report #:2305-1526
TITLE
Accessory Dwelling Unit (ADU) Quarterly Report (Quarter 1 of Calendar Year 2023)
RECOMMENDATION
This is an informational report, and no action is required.
BACKGROUND/ANALYSIS
This report transmits information related to application and period activity for accessory dwelling units
(ADU), including junior accessory dwelling units (JADU).
Since 2015, the City has received 571 ADU/JADU building permit applications and issued 437 permits. In
2022, the City received the highest volume of ADU applications in a one-year period. The data for the
first quarter of 2023 shows a slight reduction in application submittals on a year-to-year basis, but the
number of applications submitted remains robust. In terms of the Housing Element, this data continues
to support the anticipated housing unit production expected from J/ADUs for the current housing
element cycle.
In the first quarter of 2023, the ADU applications range from 264 to 921 square feet, with an average
size of 546 square feet. Approximately 31% and 69% of the applications were located north and south,
respectively, of Oregon Expressway. Further details can be found in Table 1 of Attachment A.
ENVIRONMENTAL REVIEW
This project is exempt from environmental review under Section 15061 of the California Environmental
Quality Act Guidelines.
ATTACHMENTS
Attachment A: Table 1: ADUs Quarter 1 of CY2023
APPROVED BY:
Jonathan Lait, Director, Planning and Development Services
Table 1: Summary of ADU Permits from 2015 – Q1 2023
Category 2015 2016 2017 2018 2019 2020 2021 2022 2023
(Q1)
New ADU Applications
Filed1 10 9 28 55 75 78 136 151 29
Permits: Ready to Issue
(City Approved)2 8 5 12 39 62 46 112 127 26
Permits: Issued (Permit
Obtained)3 8 5 12 36 62 43 89 120
21
Permits: Final
Inspection Approved4 3 4 9 12 33 46 37 62 22
Permits Expired 1 1 2
Detached ADUs
Detached ADUs
(Submitted)5 20 35 52 52 80 80 14
Detached ADUs
(Issued)5 8 24 41 33 55 64 9
Attached ADUs
Attached ADUs
(Submitted)6 8 20 23 20 56 44 15
Attached ADUs (Issued)6 4 11 21 9 34 32 12
Junior ADUs
Junior ADUs
(Submitted)7 1 1 1 25 27 10
Junior ADUs (Issued)7 1 1 1 9 24 7
ADU Processing/Construction Times
Average Application
Processing Time (Days
Including Weekends)8
127 214 118 183 135 197 162 193 215
Average Construction
Time (Days Including
Weekends)9
578 751 330 287 173 262 455 431 544
ADU Impact Fees
City Impact Fees
Collected for New
ADUs10
$451,514 $402,012 $198,962 $44,057 $139,592 $540,453
$60,750
ADU Sizes11
ADU Size Smallest 150 SF 159 SF 220 SF 208 SF 178 SF 192 SF 264 SF
ADU Size Largest 900 SF 900 SF 1,031 SF 1,000 SF 1,218 SF 2,217 SF 921 SF
Average ADU Size 470 SF 469 SF 383 SF 518 SF 550 SF 589 SF 546 SF
ADU Location Relative to Oregon Expressway
North 46% 49% 52% 55% 49% 52% 31%
South 54% 51% 48% 45% 51% 48% 69%
Source: City of Palo Alto Accela Data January 2015 through March 31, 2023
Notes:
1. Any ADU/JADU Application SUBMITTED for the year
2. Any ADU/JADU application Permit 'READY TO Issue' for the year (regardless of when it was submitted)
3. Any ADU/JADU Permit ISSUED for the year (regardless of when it was submitted)
4. Any ADU/JADU Permit receiving a Final Inspection (Ready to Occupy) for the year, regardless of when the
application wassubmitted. Years 2015-2017 data point not available.
5. Any Detached ADU Permit Application submitted for the year/Any Detached ADU Permit Issued for the year,
regardless of when the application was submitted. Years 2015-2016 data point not available.
6. Any Attached ADU Permit Application submitted for the year/Any Attached ADU Permit Issued for the year,
regardless of when the application was submitted. Years 2015-2016 data point not available.
7. Any JADU Permit Application submitted for the year/Any JADU Permit Issued for the year, regardless of when
the application was submitted. Years 2015-2016 data point not available.
8. Average number of days from permit application submittal to when permit is approved and ready to issue. This
average includes weekends and days application is pending due to applicant preparation of resubmittal or
additional information from applicant.
9. Average number of days from permit issued to final inspection completed. This average includes weekends and
days staff is waiting for applicant to schedule the next required inspection; it also includes time related to the
construction of a primary residence when the J/ADU is built at the same time.
10. Impact Fees collected for ADU’s permitted for the year. Years 2015-2016 data point not available.
11. Reflects the size comparisons of ADUs with applications filed in that year.
Building Permits Submitted in Q1 of 2023
New
Construction Conversion Type of Conversion
# of
apps
Dwelling
Type
Project
Location
Zoning
District Date Filed Application
Status Attached Detached Attached Detached Garage
Other Accessory
Structure/Space
# of
Bedrooms
ADU
Size
1 JADU NORTH R-1 01/25/2023 Pending Resubmittal x x 1 281
2 ADU NORTH R-1
(10000) 02/09/2023 Pending
Resubmittal x 1 810
3 ADU SOUTH R-1 (8000)(S) 01/03/2023 In Plan Check x x 1 325
4 ADU SOUTH R-1 03/07/2023 Incomplete x 2 748
5 JADU SOUTH R-1 03/15/2023 Pending
Resubmittal x 1 499
6 ADU SOUTH R-1 02/15/2023 Pending
Resubmittal x 1 440
7 ADU SOUTH R-1 03/23/2023 Pending Resubmittal x 1 797
8 ADU SOUTH R-1 03/09/2023 Pending Resubmittal x x 1 391
9 ADU NORTH R-1 01/10/2023 Incomplete x 1 538
10 JADU SOUTH R-1 02/02/2023 Pending Resubmittal x x 1 358
11 ADU SOUTH R-1 01/10/2023 In Plan Check x 2 800
12 JADU NORTH RMD (NP) 01/11/2023 Pending Resubmittal x x 0 284
13 ADU NORTH RMD
(NP) 01/11/2023 Pending
Resubmittal x x 2 836
14 ADU SOUTH R1-(8000)(S) 01/11/2023 Pending Resubmittal x 1 471
15 JADU SOUTH R-1 (10000) 03/28/2023 Pending Resubmittal x 1 500
16 ADU SOUTH R-1 (10000) 03/28/2023 Pending Resubmittal x 1 921
17 ADU SOUTH R-1 02/06/2023 Pending
Resubmittal x 1 480
18 JADU SOUTH R-1 (10000) 03/29/2023 Pending Resubmittal x 1 495
19 ADU NORTH R-1 (10000) 01/23/2023 Pending Resubmittal x x 1 523
20 JADU NORTH R-1 03/17/2023 Pending Resubmittal x 0 401
21 JADU SOUTH R-1 02/13/2023 Pending Resubmittal x 1 479
22 JADU SOUTH R-1
(8000) 03/16/2023 Pending
Resubmittal x 1 534
23 ADU SOUTH R-1 02/16/2023 In Plan Check x x 1 264
24 ADU SOUTH R-1 (8000) 03/09/2023 Pending Resubmittal x 2 750
25 ADU NORTH RM-30 03/10/2023 Pending Resubmittal x 0 315
26 ADU SOUTH R-1 02/02/2023 Pending
Resubmittal x 1 307
27 ADU NORTH RM-30 03/06/2023 Pending Resubmittal x 2 818
28 JADU SOUTH R-1 03/10/2023 In Plan Check x x 1 360
29 ADU SOUTH R-1 (10000) 01/30/2023 Pending Resubmittal x x 1 810