25 Brompton Ave
San Francisco · Glen Park · San Francisco · Coordinates: 37.73407, -122.43459
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 25 BROMPTON AVE; 27 BROMPTON AVE
Zoning & Land Use
RTO-C — RESIDENTIAL TRANSIT ORIENTED DISTRICT - C (Commercial)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RTO-C (multifamily residential): state law allows ADUs where homes are allowed. On a multifamily lot the state allowance is different: ADUs in non-living space of the building, plus up to eight detached ADUs.
- SB 9: two homes on the lotUnlikely
Zoned RTO-C (multifamily residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RTO-C (multifamily residential), not a single-family residential zone.
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 0602980231A, 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: $1,694,000 – $2,292,000 · 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)
21 active or recent development projects (25 housing units across completed, permitted, and pipeline stages) and 884 total building permits recorded within ½ mile.
- Adds housing (ADU)19 permits (24 units)
- Demolition3 permits
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 27 Brompton Ave (Issued)On this parcel
Active in "Issued" for 7.2 yr (first record Aug 21, 2019) with no new permit activity recorded in 4.8 yr.
- 39 new homes (Entitled)0.37 mi SE
Active in "Entitled" for 3.3 yr (first record Jul 13, 2023) with no new permit activity recorded in 3.3 yr. High-impact scale (39 housing units, 8 deed-restricted affordable across 0 permits).
- New home at 49 Sussex St (Issued)0.17 mi N
Active in "Issued" for 10.1 yr (first record Sep 16, 2016) with no new permit activity recorded in 2.9 yr. High-impact scale (1 housing unit, $2,000,000 declared valuation across 1 permit).
- New home at 149 Mangels Ave (Issued)0.35 mi W
Active in "Issued" for 10.3 yr (first record Jul 12, 2016) with no new permit activity recorded in 5.1 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 4 permits).
Permit & Project History on This Parcel (8 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202602196185 | Remodel / interior alteration | complete | Iss. Feb 19, 2026 | $1 | to obatin final inspection for work approved under 201908219441, 202205244907, and 202402145921. all work is complete |
| 202602196182 | Remodel / interior alteration | complete | Iss. Feb 19, 2026 | $1 | to obtain final inspection for work approved under 202106081910. all work is complete |
| 202502271202 | Remodel / interior alteration | issued | Iss. Feb 27, 2025 | $5,000 | installation of a new sprinklker monitoring system. |
| 202205244907 | Plan revision / deferred submittal | expired | Iss. Oct 27, 2023 |