Converted · legalization · Potrero Hill
638 Rhode Island St
In progress+1 unit on this lot · now 516 permits
Legalization of 3rd unit under ord 43-14 to include: 1 bedroom, 1 baths, living room, dining room, kitchen & laundry. New structural, electrical, plumbing as req. Replacement of existing west egres stairs. Ref legalization pa on sheet a0. 01.
filed Feb 2023issued Jun 2024 · permit wait 1 year 4 months2 years 5 months since issue
waiting for permitconstructionrelated building permitelectrical permitplumbing permit
Declared value
$421,069
declared across 5 permits: the ADU permit plus its sub-permits
Permit wait
1 year 4 months
filed → issued
Build time
in progress
issued → completed
Builder
Waters And WatersAlso on this project: Safe Assurance Fire Protection INC, Mcmillen Construction INC
Permits in this project
| Permit | What | When | Declared | |
|---|---|---|---|---|
| ADU permit | Legalization of 3rd unit under ord 43-14 to include: 1 bedroom, 1 baths, living room, dining room, kitchen & laundry. New structural, electrical, plumbing as req. Replacement of existing west egres stairs. Ref legalization pa on sheet a0. 01. 202302031391 · Waters And Waters | filed Feb 2023 · issued Jun 2024 | $280k | city record |
| Sprinklers | Install new fire sprinkler system for entire building. New 2" fire service also part of scope. Ref pa 202209162645. 202412036038 · Safe Assurance Fire Protection INC | filed Dec 2024 · issued Dec 2024 | $38k | city record |
| Related permit | Voluntary install new fire alarm system. 202412096434 · Mcmillen Construction INC | filed Dec 2024 · issued Dec 2024 | $25k | city record |
| Related permit | New exterior deck, new exterior stair to new 3rd floor deck, new roof deck, new spiral stair to new roof deck, new window and new door at 3rd floor ref pa# 2023-0203-1391 for additional scope of work to 3rd floor. 202412277452 · cites 202302031391 · Waters And Waters | filed Mar 2025 · issued Jul 2025 | $75k | city record |
| Revision | Revision to pa 202302031391 scope of work to include installation of new electric matt in floor heating to replace existing electric base board heating units floor heating units at the 3rd floor no increase in wattage. No work at existing 1st & 2nd floors, existing roof, existing roof, existing front facade and rear cottage. 202601224367 · cites 202302031391 · Waters And Waters | filed Jan 2026 · issued Feb 2026 | $3,000 | city record |
| Electrical | Unit# e - electrical wiring, coax and cat-5, subpanel, and appliances. E202411278476 | Nov 27, 2024 → Feb 13, 2026 | — | |
| Electrical | Online electrical permit: category 4a: installation of fire warning and controlled devices of 2, 501 - 5, 000 ft². Installation of a new fire alarm system. . E202412028489 | Dec 2, 2024 | — | |
| Electrical | New electrical svc 400 amps new 7 meter bank 6 units 1 house meter. New drop weatherhead with pg+e approval. Need green tag. Service no & size: 7 & 1. E202504101527 | Apr 10, 2025 → Apr 17, 2025 | — | |
| Electrical | New subpanel, wiring for entire structure. New lights. Bathroom & kitchen outside lights to plan. New switches & receptacles, mini-split 3-ton. E202512017446 | Dec 1, 2025 → Aug 31, 2026 | — | |
| Plumbing | Unit#e-hood and fan, bathroom exhaust water heater and vents. PM20241127302 | Nov 27, 2024 | — | |
| Plumbing | Renew permit # pp20230404283. PP20241127297 | Nov 27, 2024 → May 15, 2025 | — | |
| Plumbing | Unit#e -new plumbing kitchen, sink, 1 bathroom with shower pan, & hose bid on deck. PP20241127301 | Nov 27, 2024 → May 15, 2025 | — | |
| Plumbing | Install 4 exisitng gas meters, underground pipe to structure from unit (need pink tag for pg&e). PP20250417692 | Apr 17, 2025 → May 15, 2025 | — | |
| Plumbing | New mini split heat & cool, 2 head units @ 2 tons. PM20251201108 | Dec 1, 2025 → Sep 2, 2026 | — | |
| Plumbing | Plumbing for kitchen & 1 full bathroom, 3 fixtures, 1 on 2 hose bibs, shower pan customised. U/g plumbing. PP20251201107 | Dec 1, 2025 → Sep 2, 2026 | — | |
| Plumbing | Renew pa# pp20230404283 ((4) units: 4 new kitchens, 4 new bathrooms, remodel/relocate all new plumbing, 4 new shower pans, 2 hose bibs). PP20260803604 | Aug 3, 2026 | — |
2 other permits on this lot during the project, not counted
| Other | New retaining wall to be reflected on west side of exterior stairs at the rear of the property. Not to comply with nov #202290972. Nov to be addressed under sepeated permit. 202509195773 · Waters And Waters | filed Sep 2025 · issued Oct 2025 · done Dec 2025 | $5,000 | city record |
| Other | Revision to pa # 2024-1227-7452: scope of work include installation of new electric matt in floor heating to replace existing electric base board heating units. No work at existing 3rd floor, existing roof, existing front facade and existing rear yard cottage. Area shown for reference only. 202512081221 · Waters And Waters | filed Dec 2025 · issued Mar 2026 | — | city record |
Trade permits show what work was done and when; the city does not record who pulled them.
- Lot
- block 4030, lot 005
- Why we call it an ADU
- Two independent model reviewers agreed the permit creates an ADU: “"legalization of 3rd unit under ord 43-14 to include: 1 bedroom, 1 baths, living room, dining room, kitchen & laundry"; units 4 → 5”