Attached · Potrero Hill
1911 20th St
In progress+2 units on this lot · now 38 permits
2-story vertical addition; additon of 1 unit and an 1 ADU; sprinkler nfpa13 throughout.
filed Jun 2018issued Dec 2022 · permit wait 4 years 5 months3 years 11 months since issue
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$760,000 for 2 ADUs + other work
the permit also covers work unrelated to the ADU, so this is not an ADU price
Permit wait
4 years 5 months
filed → issued
Build time
in progress
issued → completed
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | 2-story vertical addition; additon of 1 unit and an 1 ADU; sprinkler nfpa13 throughout. 201806182159 · C H T Properties Development | filed Jun 2018 · issued Dec 2022 | $755k | city record |
| Revision | Revision to 201806182159: reduction in drilled pier count. 202505015614 · cites 201806182159 · C H T Properties Development | filed May 2025 · issued May 2025 | — | city record |
| Address | Add (2) addresses - refer to existing dbi permit# 201806182159. (existing address: 1944 20th st) add: 1913 20th st for new unit. Add 1911-a 20th st (for ADU). 202506138700 · cites 201806182159 | filed Jun 2025 · issued Jun 2025 | — | city record |
| Related permit | New rear landscape retaining walls. Ref pa 2018. 0618. 2159. 202508284158 · cites 201806182159 · C H T Properties Development | filed Aug 2025 · issued Sep 2025 | $5,000 | city record |
| Electrical | Install ufer ground only. 400 amp. E202510076209 | Oct 7, 2025 | — | |
| Electrical | 400 amp main, 3 subpanel, 3 kitchens, 6 bathss. 3 heat pump. All new wiring. E202608042623 | Aug 4, 2026 | — | |
| Plumbing | 3 heat pump and split units. PM20260804639 | Aug 4, 2026 | — | |
| Plumbing | 6 baths, 3 kitchen, 3 laundry, 1 shower pan, new domestic and waste line. No gas. PP20260804638 | Aug 4, 2026 | — |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 4096, lot 067
- Why we call it an ADU
- Two independent model reviewers agreed the permit creates an ADU: “"2-story vertical addition; additon of 1 unit and an 1 adu"; Existing units: 1 \u2192 Proposed units: 3”