1658 27th Ave
San Francisco · Sunset/Parkside · San Francisco · Coordinates: 37.75651, -122.48490
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 1658 27TH AVE; 1658A 27TH 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 3,011 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: $1,590,000 – $2,151,000 · 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)
26 active or recent development projects (27 housing units across completed, permitted, and pipeline stages) and 855 total building permits recorded within ½ mile.
- Adds housing (ADU)22 permits (22 units)
Developments Deserving Closer Investigation & Active Area Builders
- 90 new homes at 2550 Irving St (Issued)0.47 mi N
Active in "Issued" for 4.5 yr (first record May 5, 2022) with no new permit activity recorded in 2.4 yr. High-impact scale (90 housing units, 89 deed-restricted affordable, $50,000,000 declared valuation across 3 permits).
- New home at 1925 23rd Ave (Applied)0.4 mi SE
Active in "Applied" for 4.4 yr (first record Jun 7, 2022) with no new permit activity recorded in 4.4 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
- New duplex at 1347 27th Ave (Issued)0.4 mi N
Active in "Issued" for 7.6 yr (first record Apr 2, 2019) with no new permit activity recorded in 2.1 yr. High-impact scale (2 housing units, $1,456,560 declared valuation across 3 permits).
- Accessory dwelling unit at 2251 Moraga St (Issued)0.14 mi SW
Active in "Issued" for 2.8 yr (first record Jan 26, 2024) with no new permit activity recorded in 2.3 yr.
Permit & Project History on This Parcel (8 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202510217822 | Fire alarm / sprinkler | complete | Iss. Oct 22, 2025 | $12,050 | installation of a new fire alarm system which includes sprinkler monitoring. supply and install a new fire alarm control… |
| 202510147278 | Remodel / interior alteration | complete | Iss. Oct 14, 2025 | $1 | to obtain final inspection for work approved under pa #202407257257. all work is complete. |
| 202503122071 | Plan revision / deferred submittal | complete | Iss. Mar 12, 2025 | $1 | administrative revision to pa 202408219148 to remove cottage and backyard from scope per field inspector. work on sprink… |
| 202501218659 | Roof replacement | complete |