Attached · Outer Mission
120 Seneca Ave
In progress+1 unit on this lot · now 26 permits
Sb9 - add 3-story adddition at rear of an existing house. Existing unit will occupy 2nd & 3rd floor of the addition as well as roof deck. Addition to unit #1 is approx. 1095 sq ft & contains 3 bedroom, 3 bathroom, stair & roof deck. 2nd unit per sb9 of 1190 sq ft added to 1st floor. 722 sq ft of new construction.
filed Jul 2021issued Mar 2023 · permit wait 1 year 7 months3 years 8 months since issue
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$602,100 + other work
the permit also covers work unrelated to the ADU, so this is not an ADU price
Permit wait
1 year 7 months
filed → issued
Build time
in progress
issued → completed
Builder
No contractor listed
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Sb9 - add 3-story adddition at rear of an existing house. Existing unit will occupy 2nd & 3rd floor of the addition as well as roof deck. Addition to unit #1 is approx. 1095 sq ft & contains 3 bedroom, 3 bathroom, stair & roof deck. 2nd unit per sb9 of 1190 sq ft added to 1st floor. 722 sq ft of new construction. 202107265080 | filed Jul 2021 · issued Mar 2023 | $570k | city record |
| Related permit | Revise bpa#202107265080, extent 1/f & 2/f approx 5'6" to within 30' of rear property line @ 2/f, rear balconies on original permit are removed, sliding doors replaced by windows, 3/f balcony is removed & roof of additiona is deck sim to roof, all other work shown on permit 202107265080 in unchanged. 202305057253 · cites 202107265080 | filed May 2023 · issued Jul 2023 | $30k | city record |
| Revision | Revision to permit 202107265080. Legalize 72"w x 53"h window at 2/f. Legalize 25" x 48" skylight at roof stair penthouse. 202402155971 · cites 202107265080 | filed Feb 2024 · issued Mar 2024 | $2,000 | city record |
| Related permit | Recommencement and completion of work approved under pa# 202305057253 and 202402155971. 202604068983 | filed Apr 2026 · issued Apr 2026 | $100 | city record |
| Electrical | Pv plan 5602. 17 pv modules, 415 / 1000 watts per module, 7. 055. E202304206273 | Apr 20, 2023 | — | |
| Electrical | House wiring 1 floor wiring 2floor wiring 3 floor wiring 125 amps sub panel installation 200 amps main service whit 2 meter. EW202305030838 | May 3, 2023 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 6967, lot 011
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.