631 43rd Ave
San Francisco · Outer Richmond · San Francisco · Coordinates: 37.77663, -122.50416
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 631 43RD AVE; 631A 43RD AVE
Zoning & Land Use
RH-1 — RESIDENTIAL- HOUSE, ONE FAMILY (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RH-1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RH-1, a single-family residential zone. The lot is 3,551 sq ft on the parcel map, room for two lots of at least 1,200 sq ft, each at least 40% of the original.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 0602980094A, effective March 23, 2021
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,551,000 – $2,099,000 · Status: Off market
HUD Metro FMR (San Francisco, CA HUD Metro FMR Area) · FY 2026
Studio $2,485 · 1BR $2,977 · 2BR $3,604 · 3BR $4,604 · 4BR $4,772
Nearby Activity (½ mile radius, since October 2024)
14 active or recent development projects (15 housing units across completed, permitted, and pipeline stages) and 723 total building permits recorded within ½ mile.
- Adds housing (ADU)10 permits (11 units)
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 5624 Anza St (Issued)0.25 mi W
Active in "Issued" for 5.1 yr (first record Sep 7, 2021) with no new permit activity recorded in 2.2 yr. work_desc changed to "to obtain final inspection for work approved under pa# 202503263052 all work is complete" in snapshot Oct 30, 2026.
- Accessory dwelling unit at 574 44th Ave (Issued)430 ft N
Active in "Issued" for 2.3 yr (first record Jul 10, 2024) with no new permit activity recorded in 14 mo.
- Accessory dwelling unit at 664 45th Ave (Approved)470 ft SW
Active in "Approved" for 14 mo (first record Sep 4, 2025) with no new permit activity recorded in 14 mo.
- Accessory dwelling unit at 600 41st Ave (Issued)0.15 mi E
Active in "Issued" for 8.6 yr (first record Mar 23, 2018) with no new permit activity recorded in 5.2 yr.
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202407267342 | Accessory dwelling unit (new or conversion) | complete | Iss. Apr 14, 2025 | $215,205 | to legalize (e) 844 secondary unit in the first floor - behind the (e) garage; to add 46 s.f.in order to enlarge the adu… |
| 201702179710 | Roof replacement | complete | Iss. Feb 17, 2017 | $12,100 | installation of gas burning fireplace in corner of (e) living room. includes framing, gasl ine and key and roofing. |
| 201611223307 | HVAC / heat pump | issued | Iss. Nov 22, 2016 | $16,175 | duct replacement only in crawl space; 40' (n) duct. |
| 201610180597 | Windows / doors / siding | complete | Iss. Oct 26, 2016 |