428 15th Ave
San Francisco · Outer Richmond · San Francisco · Coordinates: 37.77997, -122.47365
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 428 15TH AVE; 428A 15TH AVE
Zoning & Land Use
RH-2 — RESIDENTIAL- HOUSE, TWO FAMILY (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-2 (two-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotUnlikely
Zoned RH-2 (two-family residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RH-2 (two-family 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 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: $1,551,000 – $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)
39 active or recent development projects (134 housing units across completed, permitted, and pipeline stages) and 1,207 total building permits recorded within ½ mile.
- New construction3 permits (85 units)
Developments Deserving Closer Investigation & Active Area Builders
- 2 new homes at 428 15th Ave (Issued)On this parcel
Active in "Issued" for 4.6 yr (first record Apr 7, 2022) with no new permit activity recorded in 14 mo. High-impact scale (2 housing units, $1,879,780 declared valuation across 5 permits).
- New duplex at 311 09th Ave (Applied)0.36 mi NE
Active in "Applied" for 2.9 yr (first record Nov 22, 2023) with no new permit activity recorded in 2.5 yr. High-impact scale (2 housing units, $1,409,648 declared valuation across 2 permits).
- New duplex at 1633 Cabrillo St (Issued)0.4 mi S
Active in "Issued" for 9.3 yr (first record Jul 20, 2017) with no new permit activity recorded in 2 yr. High-impact scale (2 housing units, $950,000 declared valuation across 2 permits).
- Accessory dwelling unit at 266 21st Ave (Issued)0.42 mi NW
Active in "Issued" for 5.2 yr (first record Aug 26, 2021) with no new permit activity recorded in 3.2 yr. High-impact scale (5 housing units, $385,000 declared valuation across 2 permits).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202606304320 | Plan revision / deferred submittal | issued | Iss. Jul 1, 2026 | $20,000 | revision to pa# 202204071831. permeation grouting to stabilize subsoil, adjacent property work at 430 15th ave ref pa# 2… |
| 202212309593 | Accessory dwelling unit (new or conversion) | issued | Iss. Sep 8, 2025 | $75,000 | new detached adu 1-story, type-vb, in rear yard (originally part of pa#202204071831) |
| 202204071831 | New duplex / half-plex | issued | Iss. May 15, 2024 | $1,879,780 | to erect 4 stories, no basment, type v-b, 2-units building. |
| 202204071826 | Demolition | issued | Iss. May 15, 2024 |