Block 2752, lot 022
3936 21st St
- City’s use
- Single Family Residential
- Built
- 1929
- Stories
- 2
- Units
- 1
- Rooms
- 2 bathrooms
- Building
- 2,712 sq ft
- Lot
- 2,548 sq ft
- Zoning
- RH2
- Construction type
- D
From the assessor's latest secured roll, which can lag recent work. Lot plans, zoning and planning history on the city’s Property Information Map
Permits filed here
5 permits filed for this property since 2000.
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Jun 25, 2026 | In progress issued Jul 2026 | 3936 21st St | Ket Construction Inc. | interior remodel converting on habitable 1st fl space into habitable spaces inlculding a bath, media, study, gym, and wine room. new window being installed on rear facade. the existing buildings gross floor area is not being modified. 836 sf of prev e occupied floor is being renovated.Details
interior remodel converting on habitable 1st fl space into habitable spaces inlculding a bath, media, study, gym, and wine room. new window being installed on rear facade. the existing buildings gross floor area is not being modified. 836 sf of prev e occupied floor is being renovated. | $100,000 |
| May 16, 2025 | Completed final sign-off Apr 2026 | 3936 21st St | Ket Construction Inc. | ground fl: rebuild stair 2nd fl: remodel kitchen, relocate bath, infill light court, upgrade stairs to 1st fl, modify (e) rear roof deck. 3rd fl: remodel master bath & bath, infill light court. replace & upgrade windowsDetails
ground fl: rebuild stair 2nd fl: remodel kitchen, relocate bath, infill light court, upgrade stairs to 1st fl, modify (e) rear roof deck. 3rd fl: remodel master bath & bath, infill light court. replace & upgrade windows | $220,000 |
| Sep 16, 2024 | Expired or cancelled withdrawn Apr 2025 | 3936 21st St | Archetype Construction Corp | remodel & addition to (e) 4,105.6 sqft 3-story, single family residence w/attached 1-car garage, convert(e) non-habitable space @ 1/f to 801.1 sqft conditioned space for adu, new roof deck w/retractable skylight, remodel of decks @ 2/f & 3/f & interior remodel throughout also part of scope of work.Details
remodel & addition to (e) 4,105.6 sqft 3-story, single family residence w/attached 1-car garage, convert(e) non-habitable space @ 1/f to 801.1 sqft conditioned space for adu, new roof deck w/retractable skylight, remodel of decks @ 2/f & 3/f & interior remodel throughout also part of scope of work. | $300,000 |
| Jul 22, 2024 | Expired or cancelled cancelled Aug 2024 | 3936 21st St | remodel & ddition to an (e) 4,105.6 sq ft three story sfd w/ attached 1 car garage.converting existing non-habitable space @ 1st fl to 801.1 sq ft conditioned space for accessory dwelling unit.(n) roof deck w/ retractable skylight,remodel of decks @ 2nd & 3rd fls.Details
remodel & ddition to an (e) 4,105.6 sq ft three story sfd w/ attached 1 car garage.converting existing non-habitable space @ 1st fl to 801.1 sq ft conditioned space for accessory dwelling unit.(n) roof deck w/ retractable skylight,remodel of decks @ 2nd & 3rd fls. | $300,000 | |
| Feb 20, 2024 | Expired or cancelled cancelled Jul 2025 | 3936 21st St | Archetype Construction Corp | kitchen and bathroom renovation. kitchen - new floor, new counter top, new cabinets. bathroom - new tiles, new vanities, non structuralDetails
kitchen and bathroom renovation. kitchen - new floor, new counter top, new cabinets. bathroom - new tiles, new vanities, non structural | $50,000 |
Who worked here
Everyone with a license on these permits, by role, with how many permits each is on.
- Contractors
- Archetype Construction Corp (2), Ket Construction Inc. (2)
- Architects
- Mark English, Steven David Stept
- Engineers
- Horon Lee, Jefferson Chen
Find contractors for work like this
Starts from the last permit filed here; change it to describe your own project. Results cover single-family homes like this one.