Converted · ground-floor conversion · Noe Valley
490 Collingwood St
In progress+2 units on this lot · now 107 permits
New two additional dwelling units at ground floor per ordinance 162-16. Unit a 322 sq ft gross and unit b 307 sq ft gross. Sprinkler entire ground flr, manual fire alarm system shall be provided throughout entire building.
filed Jun 2020issued Jun 2024 · permit wait 4 years2 years 5 months since issue
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$233,086 for 2 ADUs
one permit, 2 units; not a per-unit price
Permit wait
4 years
filed → issued
Build time
in progress
issued → completed
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | New two additional dwelling units at ground floor per ordinance 162-16. Unit a 322 sq ft gross and unit b 307 sq ft gross. Sprinkler entire ground flr, manual fire alarm system shall be provided throughout entire building. 202006038108 · Mullins General Construction & Fine Painting | filed Jun 2020 · issued Jun 2024 | $206k | city record |
| Sprinklers | Ref 202006038108- install 2 inch fire service with double detector check with meter. Install automatic fire sprinkler system nfpa 13. 2019 ed. Install 24 sprinkler with underground work. 202510157406 · cites 202006038108 · Kelly And Son | filed Oct 2025 · issued Mar 2026 | $27k | city record |
| Electrical | Install ufer ground in foundation. EW202502274579 | Feb 27, 2025 | — | |
| Electrical | Upgrade main service panel from 125amp to 400amp. Add 2 meters for new apartments. EW202503245190 | Mar 24, 2025 | — | |
| Electrical | Online electrical permit: 120 of buildings of 7-12 dwelling units. Installation of sprinkler monitoring system and installation of low frequency sounders in the sleeping areas. E202604020067 | Apr 2, 2026 | — | |
| Plumbing | Replace sprinkler with new to include underground work. PP20260309815 | Mar 9, 2026 | — | |
| Plumbing | Work category: 1m; installation of 2 - 9, 000 btuh mini-split heat pumps. PMW20260608508 | Jun 8, 2026 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 2769, lot 041
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.