Converted · garage conversion · Mission
484 Guerrero St
Completed Jan 2026+2 units on this lot · now 89 permits
Renovate 1 guest room at ground floor, install full kitchen & reconfigure for 1-bedroom layout to become ADU. Convert 1-car garage into 1 ADU (state program). ADU to be a studio apartment. Modifications to existing sprinklers under separate permit. Upgrade fire alarm under separate permit.
filed Dec 2022issued Feb 2024 · permit wait 1 year 2 monthscompleted Jan 2026 · built in 2 years
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$228,522 for 2 ADUs
one permit, 2 units; not a per-unit price
Permit wait
1 year 2 months
filed → issued
Build time
2 years
issued → completed
Builder
Doherty Restoration INCAlso on this project: O'Connor Plumbing & Fire Protection INC, Crime Watch Security Sys Llc
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Renovate 1 guest room at ground floor, install full kitchen & reconfigure for 1-bedroom layout to become ADU. Convert 1-car garage into 1 ADU (state program). ADU to be a studio apartment. Modifications to existing sprinklers under separate permit. Upgrade fire alarm under separate permit. 202212228969 · Doherty Restoration INC | filed Dec 2022 · issued Feb 2024 · done Jan 2026 | $200k | city record |
| Sprinklers | Provide fire sprinkler throughout ground floor only and new underground per nfpa 24. Ref pa# 202212228969. 202412277453 · cites 202212228969 · O'Connor Plumbing & Fire Protection INC | filed Dec 2024 · issued Dec 2024 · done Jul 2025 | $24k | city record |
| Revision | As-built: corrected ground floor layout an d added several new devices on the ground floor. Ref pa #202303093327. 202506128624 · Crime Watch Security Sys Llc | filed Jun 2025 · issued Jun 2025 · done Jun 2025 | $4,224 | city record |
| Revision | Revision to 202212228969: revise wall layout in 1st/f. 202510036732 · cites 202212228969 · Doherty Restoration INC | filed Oct 2025 · issued Dec 2025 · done Jan 2026 | — | city record |
| Electrical | Online electrical permit: 60 of buildings of 6 dwelling units or less. Modification of an existing fire alarm system by upgrading the fire panel, update all existing devices to be compatible with new facp and provide low frequency sounders in all sleeping areas to meet. E202404093640 | Apr 9, 2024 → Jun 20, 2025 | — | |
| Electrical | Installation of new wiring for back unit on ground level and also installation of wiring for ADU on ground level. EW202501073318 | Jan 7, 2025 → Jun 12, 2025 | — | |
| Plumbing | Work category: 2pb; two ADU additions with two kitchens and two bathroom. PW20241025686 | Oct 25, 2024 → Jun 20, 2025 | — | |
| Plumbing | Work category: 4pb; provide fire sprinkler coverage throughout ground floor per nfpa 13, and new underground per nfpa 24. PW20250106095 | Jan 6, 2025 → Jun 20, 2025 | — | |
| Plumbing | Work category: 1m; install two heat pump system one for front uni and for back unit. PMW20250115357 | Jan 15, 2025 → Jun 12, 2025 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 3567, lot 009
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.