Table 1: Summary of ADU Permits from 2015-2024 (Q1 – Q2) Category 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 (Q1-Q2)
New ADU Applications
Filed1 10 9 28 55 75 78 136 151 122 74
Permits: Ready to Issue
(City Approved)2 8 5 12 39 62 46 112 127 135 58
Permits: Issued (Permit
Obtained)3 8 5 12 36 62 43 89 120
125 57
Permits: Final Inspection
Approved4 3 4 9 12 33 46 37 62 101 46
Permits Expired 1 1 1 1
Detached ADUs
(Submitted)5 20 35 52 52 80 80 48 28
Detached ADUs (Issued)5 8 24 41 33 55 64 57 22
Attached ADUs
(Submitted)6 8 20 23 20 56 44 43 31
Attached ADUs (Issued)6 4 11 21 9 34 32 40 26
Junior ADUs (Submitted)7 1 1 1 25 27 31 15
Junior ADUs (Issued)7 1 1 1 9 24 28 9
Category 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 (Q1-Q2)
Average Application
Processing Time (Days
Including Weekends)8
127 214 118 183 135 197 162 193 187 192
Average Construction
Time (Days Including
Weekends)9
578 751 330 287 173 262 455 431 496 489
City Impact Fees
Collected for New
ADUs10
$451,514 $402,012 $198,962 $44,057 $139,592 $540,453
$487,322 $274,782
ADU Size Smallest 150 SF 159 SF 220 SF 208 SF 178 SF 192 SF 227 SF 165 SF ADU Size Largest 900 SF 900 SF 1,031 SF 1,000 SF 1,218 SF 2,217 SF 1000 SF 1000 SF Average ADU Size 470 SF 469 SF 383 SF 518 SF 550 SF 589 SF 571 SF 517 SF
ADU Location
Relative to
Oregon
Expressway
North 46% 49% 52% 55% 49% 52% 41% 45%
South 54% 51% 48% 45% 51% 48% 59% 55%
Source: City of Palo Alto Accela Data January 2015 through June 2024
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.
ADU Applications Submitted for CY 2024 (Q1) New Construction Conversion Type of Conversion
# of
apps
Dwelling
Type
Project
Location
Zoning
District
Date
Filed Application Status Attached Detached Attached Detached Garage Other Acc.
Structure/Space
# of
bdrms
ADU
Size
1 ADU North R-1 2/9/24 Incomplete x 1 324
2 ADU North R-1
(10000)
3/19/24 Pending Resubmittal x 2 868
3 JADU North R-1
3/26/24 Pending Resubmittal x x 1 196
4 ADU North R-1
2/20/24 Pending Resubmittal x 1 536
5 ADU North R-1
2/15/24 In Plan Check x x 2 720
6 ADU North R-1
3/13/24 Pending Resubmittal x 2 749
7 ADU North RM-15 1/8/24 Pending Resubmittal x 1 566 8 ADU North R-1 2/1/24 Pending Resubmittal x 1 514 9 ADU North R-1
3/13/24 Pending Resubmittal x x 0 392
10 ADU South R-1 2/7/24 In Plan Check x 2 749 11 ADU South R-1
2/29/24 In Plan Check x 1 750
12 ADU South R-1
3/28/24 Pending Resubmittal x 2 1,000
13 ADU South R-1
2/29/24 Pending Resubmittal x 2 749
14 ADU South R-1
1/12/24 Pending Resubmittal x 1 461
15 ADU South R-1
1/29/24 Permit Issued x 2 750
16 ADU South R-1 3/5/24 Pending Resubmittal x 2 805 17 ADU South R-1 (7000) 1/16/24 Pending Resubmittal x x 1 238 18 ADU South R-1 (8000) 3/20/24 Pending Resubmittal x 1 523 19 ADU South R-1 (8000) 1/2/24 Permit Issued x x 0 485 20 ADU South R-1 (8000) 3/12/24 Pending Resubmittal x 0 608 ADU Applications Submitted for CY 2024 (Q1) New Construction Conversion Type of Conversion
# of
apps
Dwelling
Type
Project
Location
Zoning
District
Date
Filed Application Status Attached Detached Attached Detached Garage Other Acc.
Structure/Space
# of
bdrms
ADU
Size
21 ADU South R-1
3/21/24 Pending Resubmittal x 2 750
22 ADU North RM-15 3/5/24 Submitted x x 0 645
23 ADU South R-1
2/29/24 Pending Resubmittal x x 1 402
24 ADU South R-1 (S)
2/14/24 Pending Resubmittal x x 1 519
25 ADU South R-1 (S) 3/6/24 Pending Resubmittal x 2 750 26 ADU South R-1 2/1/24 Pending Resubmittal x 1 600 27 ADU South RE
3/15/24 Incomplete x x 1 675
28 ADU North R-1
(10000) 3/6/24 Pending Resubmittal x x 1 524
29 ADU North R-1
1/30/24 Pending Resubmittal x x 1 456
30 JADU South R-1
1/11/24 Pending Resubmittal x x 1 478
31 ADU North R-1 2/2/24 Pending Resubmittal x 1 300 32 JADU South R-1
2/13/24 In Plan Check x x 1 357
33 ADU South R-1
2/27/24 In Plan Check x x 1 337
34 JADU South R-1 (8000)
3/27/24 Pending Resubmittal x x 0 280
35 ADU South R-1
3/19/24 Pending Resubmittal x 2 743
36 ADU North R-1
2/10/24 Pending Resubmittal x x 1 412
37 ADU North R-2
3/18/24 In Plan Check x x 1 360
38 JADU North R-1
2/12/24 In Plan Check x 1 493
39 ADU North R-1
3/15/24 Pending Resubmittal x 1 480
ADU Applications Submitted for CY 2024 (Q2) New Construction Conversion Type of Conversion # of apps Dwelling
Type
Project
Location
Zoning
District Date Filed Application Status Attached Detached Attached Detached Garage Other Acc.
Structure or
Space
# of
bdrms
ADU
Size
40 JADU SOUTH R-1 4/4/24 Pending Resubmittal x x 1 500 41 JADU NORTH R-1 4/12/24 Resubmitted x 1 400 42 JADU NORTH R-1
(10000) 4/24/24 Pending Resubmittal x 1 165
43 JADU SOUTH R-1 5/3/24 Revisions Received x x 1 400 44 JADU SOUTH R-1 5/16/24 Pending Resubmittal x x 1 451 45 JADU SOUTH R-1 5/10/24 Incomplete x x 1 238 46 JADU SOUTH R-1 5/30/24 Pending Resubmittal x 1 476 47 JADU NORTH R-1 6/19/24 Submitted - PC Required x 1 478 48 JADU SOUTH R-1 6/4/24 Pending Resubmittal x 1 500 49 JADU SOUTH R-1 6/13/24 Pending Resubmittal x 1 466 50 ADU SOUTH R-1 6/17/24 Pending Resubmittal x 1 613 51 ADU NORTH R-1 6/4/24 Resubmitted x x 1 456
52 ADU NORTH R-1 6/5/24 Pending Resubmittal x 1 355 53 ADU SOUTH R-1 6/7/24 Pending Resubmittal x 2 749 54 ADU SOUTH R-1 (7000) 6/20/24 Submitted - PC Required x 1 735 55 ADU SOUTH R-1 6/24/24 Submitted - PC Required x 1 798 56 ADU NORTH R-1
(10000) 6/3/24 Pending Resubmittal x 2 800
57 ADU SOUTH R-1 (8000) 5/14/24 Resubmitted x 2 809 58 ADU NORTH R-1 5/23/24 Pending Resubmittal x x 1 553 59 ADU SOUTH R-1 (7000) 5/28/24 Resubmitted x 2 609
ADU Applications Submitted for CY 2024 (Q2) New Construction Conversion Type of Conversion # of apps Dwelling
Type
Project
Location
Zoning
District Date Filed Application Status Attached Detached Attached Detached Garage Other Acc.
Structure or
Space
# of
bdrms
ADU
Size
60 ADU SOUTH R-1 5/30/24 Pending Resubmittal x 2 800 61 ADU NORTH R-1 5/7/24 Pending Resubmittal x x 1 261 62 ADU NORTH R-1 5/9/24 Submitted - PC Required x x 0 340 63 ADU NORTH R-1 4/15/24 Pending Resubmittal x 0 567 64 ADU NORTH R-1 4/16/24 Pending Resubmittal x x 1 275 65 ADU NORTH R-1 4/19/24 Resubmitted x 1 534 66 ADU SOUTH RM-15 4/23/24 Resubmitted x 1 400 67 ADU NORTH R-1 4/5/24 Pending Resubmittal x 1 432 68 ADU NORTH R-1 4/9/24 Revisions Received x 1 534 69 ADU NORTH R-1 4/10/24 Resubmitted x x 2 750 70 ADU SOUTH R-1 4/12/24 Pending Resubmittal x 1 399 71 ADU SOUTH R-1 4/2/24 Resubmitted x 1 766
72 ADU SOUTH R-1 4/3/24 Pending Resubmittal x 1 750 73 ADU SOUTH RM-30 6/13/24 Submitted - PC Required x 1 565 74 ADU NORTH R-1 4/5/24 Pending Resubmittal x 1 432