Converted · ground-floor conversion · Nob Hill
1351 Mason St
Completed Jul 2025+3 units on this lot · now 1516 permits
1st flr: addition of 3 dwelling units per ord no 162-16 and comply with info sheet g-23. Soft story retrofit under bpa #2017-0906-7080. Entire 1st flr to be sprinklered under nfpa 13 under seperate permit.
filed Feb 2018issued Nov 2023 · permit wait 5 years 9 monthscompleted Jul 2025 · built in 1 year 8 months
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$438,932 for 3 ADUs
one permit, 3 units; not a per-unit price
Permit wait
5 years 9 months
filed → issued
Build time
1 year 8 months
issued → completed
Builder
Gong Kenny ConstructionAlso on this project: Safe Assurance Fire Protection INC, Mcmillen Construction INC
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | 1st flr: addition of 3 dwelling units per ord no 162-16 and comply with info sheet g-23. Soft story retrofit under bpa #2017-0906-7080. Entire 1st flr to be sprinklered under nfpa 13 under seperate permit. 201802090976 · Gong Kenny Construction | filed Feb 2018 · issued Nov 2023 · done Jul 2025 | $350k | city record |
| Sprinklers | Install a new fire sprinkler for new adus and entire gr floor scope also includes new 2" fire service. Ref 201802090976. 202403087429 · cites 201802090976 · Safe Assurance Fire Protection INC | filed Mar 2024 · issued Mar 2024 · done Dec 2024 | $38k | city record |
| Related permit | Upgrade fire alarm system to comply with sffc 1103. 7. 6. 1. 202411044276 · Mcmillen Construction INC | filed Nov 2024 · issued Nov 2024 | $51k | city record |
| Revision | Revision to 201802090976. 1) relocate unit 13 entry door 3 ft to the left. 2) add new door from lobby to north garage area. 3) relocate utility room door from north lightwell to lobby. 4) eliminate bathroom window in home office. 202507020074 · cites 201802090976 | filed Jul 2025 · issued Jul 2025 · done Jul 2025 | — | city record |
| Electrical | Apt 4 - install electrical for apartment per building 202312062013 - 15 lights, 9 switches, 20 receptacles, 2 fans, dishwasher, garbage disposal, microwave, range 3 smoke detectors. E202312111084 | Dec 11, 2023 → May 1, 2024 | — | |
| Electrical | Apt 3 - install electrical for apartment per building 202312062013 - 20 lights, 10 switches, 20 receptacles, 2 fans, dishwasher, garbage disposal, microwave, range 3 smoke detectors. E202312111083 | Dec 11, 2023 → May 1, 2024 | — | |
| Electrical | 3 ADU's: install electrical. E202403283390 | Mar 28, 2024 → Oct 11, 2024 | — | |
| Electrical | Add house meter and panel. EW202408300824 | Aug 30, 2024 → Sep 3, 2024 | — | |
| Electrical | Ref to fire pa#202411044276: upgrade fire alarm system to comply with sffc 1103. 7. 6. 1. E202411058000 | Nov 5, 2024 | — | |
| Plumbing | Apt 3 & 4 install plumbing for bathrooms, kitchen and laundry per building 202312062013 with shower p ans. PP20231211392 | Dec 11, 2023 → Apr 26, 2024 | — | |
| Plumbing | Apt 3 & 4 install furnace & water heater per building 202312062013. PM20231211393 | Dec 11, 2023 → Oct 8, 2024 | — | |
| Plumbing | Renewal for pm20220622553. For unit 2. PM20231212414 | Dec 12, 2023 → Dec 19, 2023 | — | |
| Plumbing | Work category: 4pb; rough inspection for a new fire sprinkler system which includes a new 2" fire service. PW20240312258 | Mar 12, 2024 → Oct 22, 2024 | — | |
| Plumbing | Install furnace and water heaters for 3 ADU. PM20240328057 | Mar 28, 2024 → Oct 10, 2024 | — | |
| Plumbing | Install plumbing for 3 ADU kitchen, bathroom, laundry per bpa# 201802090976. PP20240328056 | Mar 28, 2024 → Oct 8, 2024 | — | |
| Plumbing | Gas test for house meter. PP20250512204 | May 12, 2025 → May 14, 2025 | — |
2 other permits on this lot during the project, not counted
| Other | 2/f: apt 3 - remodel kitchen and 1 bath. Add 1 bath. Replace 4 windows in kind in lightwell. Windows not visible from street. Apt 4 - remodel kitchen and relocate 1 bath. Replace 1 window in kind in lightwell. Window not visible from street. No exterior/facade work. 202312062013 · Gong Kenny Construction | filed Dec 2023 · issued Dec 2023 | $111k | city record |
| Other | Revision to permit# 202312062013: replace all finishes at unit #3. Washer/dryer room dryot. Repair at unit #3 and #4. 202312212910 · Gong Kenny Construction | filed Dec 2023 · issued Dec 2023 | $5,000 | city record |
These permits also cite 201709067080, which the city filed before our records begin.
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 0181, lot 004
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.