1347 40th Ave
San Francisco · Sunset/Parkside · San Francisco · Coordinates: 37.76167, -122.49989
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 1347 40TH AVE; 1347A 40TH 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 3,000 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 0602980113A, 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: $1,485,000 – $2,009,000 · 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)
22 active or recent development projects (28 housing units across completed, permitted, and pipeline stages) and 571 total building permits recorded within ½ mile.
- New construction2 permits (2 units)
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 3713 Lawton St (Issued)0.38 mi SW
Active in "Issued" for 15 mo (first record Aug 11, 2025) with no new permit activity recorded in 10 mo. High-impact scale (1 housing unit, $1,062,978 declared valuation across 1 permit).
- New home at 3801 Irving St (Issued)410 ft NE
Active in "Issued" for 7.5 yr (first record Apr 19, 2019) with no new permit activity recorded in 5 yr.
- Accessory dwelling unit at 1719 39th Ave (Applied)0.49 mi S
Active in "Applied" for 22 mo (first record Jan 9, 2025) with no new permit activity recorded in 11 mo. High-impact scale (1 housing unit, $900,000 declared valuation across 1 permit).
- Accessory dwelling unit at 1255 38th Ave (Applied)0.17 mi NE
Active in "Applied" for 4.5 yr (first record Apr 14, 2022) with no new permit activity recorded in 4.5 yr.
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202607235484 | Plan revision / deferred submittal | issued | Iss. Jul 23, 2026 | $1 | revision to #202603167679. material change to wall assembly located in exterior breezeway. replace gympsum with lp fireb… |
| 202607235465 | Remodel / interior alteration | issued | Iss. Jul 23, 2026 | $27,900 | bathroom remodel in kind. no change to floor layout. no change to wall layout. no structural work. |
| 202603167679 | Accessory dwelling unit (new or conversion) | issued | Iss. May 29, 2026 | $185,000 | convert existing conditioned space on street level to adu. |
| 201608266148 | Windows / doors / siding | complete | Iss. Aug 26, 2016 |