Converted · interior conversion · Haight Ashbury
124 Lyon St
Completed Jul 2026+1 unit on this lot · now 38 permits
Creation of an ADU (state converted) within existing duplex. No new area added outside building envelope. No exterior changes. Interior remodeling on 1st, 2nd and 3rd floors.
filed Jul 2023issued Oct 2024 · permit wait 1 year 2 monthscompleted Jul 2026 · built in 1 year 10 months
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$343,496 + other work
the permit also covers work unrelated to the ADU, so this is not an ADU price
Permit wait
1 year 2 months
filed → issued
Build time
1 year 10 months
issued → completed
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Creation of an ADU (state converted) within existing duplex. No new area added outside building envelope. No exterior changes. Interior remodeling on 1st, 2nd and 3rd floors. 202307252975 · Francies Construction INC | filed Jul 2023 · issued Oct 2024 · done Jul 2026 | $308k | city record |
| Sprinklers | Scope of work: new sprinler system to the new ADU on second floor level per approved building permit# 2023-0725-2975. Includes both sprinkler system and new underground supply. Nfpa 13 system. 202504033610 · cites 202307252975 · Control Fire INC | filed Apr 2025 · issued Apr 2025 · done Jul 2026 | $18k | city record |
| Sprinklers | New sprinkler system to new ADU on 2nd/f per approved building pa# 202307252975 included both sprinkler system & new underground supply mfna-13. Revision to fire pa# 202504033610 revised the underground to a combined system. 202506128538 · cites 202307252975 · Control Fire INC | filed Jun 2025 · issued Jun 2025 · done Jul 2026 | $17k | city record |
| Electrical | Complete rewire of 3 bedroom apartment. EW202411142485 | Nov 14, 2024 → Jun 3, 2026 | — | |
| Electrical | Wiring of new 3 bedroom unit with kitchen and 2 bathrooms. EW202503215125 | Mar 21, 2025 → Jun 3, 2026 | — | |
| Electrical | Online electrical permit: category 4a: installation of fire warning and controlled devices of up to 2, 500 ft². Installing dedicated functions fire alarm system for the sprinkler monitoring. . E202604200426 | Apr 20, 2026 → May 14, 2026 | — | |
| Plumbing | Work category: 4pa; installing a new fire sprinkler system. PW20250509151 | May 9, 2025 → Mar 5, 2026 | — | |
| Plumbing | Installation of 2 shower pans in two different bathrooms. PP20251007104 | Oct 7, 2025 → Oct 20, 2025 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 1220, lot 024
- Why we call it an ADU
- SF DBI flagged the permit as an ADU.