38 Seneca Ave
San Francisco · Outer Mission · San Francisco · Coordinates: 37.71823, -122.44042
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 38A SENECA AVE; 38 SENECA 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 2,500 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: $1,258,000 – $1,702,000 · 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)
29 active or recent development projects (76 housing units across completed, permitted, and pipeline stages) and 665 total building permits recorded within ½ mile.
- Adds housing (ADU)20 permits (22 units)
- Demolition
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 38 Seneca Ave (Issued)On this parcel
Active in "Issued" for 2.3 yr (first record Jul 10, 2024) with no new permit activity recorded in 14 mo.
- 50 new homes (Entitled)0.37 mi SW
Active in "Entitled" for 2.7 yr (first record Feb 8, 2024) with no new permit activity recorded in 2.7 yr. High-impact scale (50 housing units, 12 deed-restricted affordable across 0 permits).
- 8 new homes (Entitled)0.31 mi NE
Active in "Entitled" for 2.6 yr (first record Mar 12, 2024) with no new permit activity recorded in 2.6 yr. High-impact scale (8 housing units across 0 permits).
- New duplex at 667 Madrid St (Issued)0.33 mi E
Active in "Issued" for 9.3 yr (first record Jul 13, 2017) with no new permit activity recorded in 3.1 yr. High-impact scale (2 housing units, $848,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (1 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202405202483 | Accessory dwelling unit (new or conversion) | reinstated | Iss. Aug 29, 2025 | $188,000 | to comply with nov# 202306140 (work w/o permit on the ground floor). add 749 sqft attached adu (state adu) on ground flo… |
State HCD Housing Element APR records on this parcel: 2 entries (report years 2024, 2025).