2435 21st Ave
San Francisco · Sunset/Parkside · San Francisco · Coordinates: 37.74224, -122.47811
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 2435 21ST AVE; 2435A 21ST AVE
Zoning & Land Use
RH-1(D) — RESIDENTIAL- HOUSE, ONE FAMILY- DETACHED (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-1(D) (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RH-1(D), a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RH-1(D), a single-family residential zone. The lot is 4,019 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 0602980230A, 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: $1,439,000 – $1,947,000 · 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)
18 active or recent development projects (22 housing units across completed, permitted, and pipeline stages) and 658 total building permits recorded within ½ mile.
- Adds housing (ADU)11 permits (12 units)
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 2435 21st Ave (Issued)On this parcel
Active in "Issued" for 7.1 yr (first record Oct 8, 2019) with no new permit activity recorded in 3.9 yr.
- 3 new homes at 1420 Taraval St (Applied)0.19 mi W
Active in "Applied" for 8.2 yr (first record Aug 8, 2018) with no new permit activity recorded in 6.7 yr. High-impact scale (3 housing units, $1,800,000 declared valuation across 2 permits).
- 1221 Vicente Street (Entitled)0.26 mi SW
Active in "Entitled" for 3.9 yr (first record Dec 16, 2022) with no new permit activity recorded in 2.2 yr. High-impact scale (3 housing units, $1,300,000 declared valuation across 2 permits).
- Accessory dwelling unit at 2495 20th Ave (Applied)480 ft SE
Active in "Applied" for 6 yr (first record Oct 28, 2020) with no new permit activity recorded in 6 yr.
Permit & Project History on This Parcel (5 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202305047116 | Plan revision / deferred submittal | issued | Iss. Nov 30, 2023 | $1 | revision to pa# 201910083802. reduce the adu addition @ rear of the building from 2 stories to a single story. 2 bedroom… |
| 202305047115 | Plan revision / deferred submittal | issued | Iss. Nov 30, 2023 | $1 | revision to pa# 201910083800. reduce the addition to (e) single family dwelling by adding habitable space & roof deck @ … |
| 201910083802 | Accessory dwelling unit (new or conversion) | issued | Iss. Feb 25, 2022 | $98,000 | per adu ordinance# 95-17, add adu @ the rear of the building. 2 bedroom & 3 bathrooms. |
| 201910083800 | Roof replacement | issued |