1817 Silliman St
San Francisco · Excelsior · San Francisco · Coordinates: 37.72627, -122.42327
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 1817A SILLIMAN ST; 1817 SILLIMAN ST; 1819A SILLIMAN ST
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 5,049 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 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: $1,005,000 – $1,359,000 · 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)
16 active or recent development projects (21 housing units across completed, permitted, and pipeline stages) and 594 total building permits recorded within ½ mile.
- New construction1 permit (3 units)
- Adds housing (ADU)12 permits (14 units)
Developments Deserving Closer Investigation & Active Area Builders
- 39 new homes (Entitled)0.45 mi NW
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).
- Accessory dwelling unit at 1817 Silliman St (Applied)On this parcel
High-impact scale (2 housing units, $1,464,117 declared valuation across 1 permit).
- Accessory dwelling unit at 1819 Silliman St (Applied)On this parcel
High-impact scale (2 housing units, $1,459,722 declared valuation across 1 permit).
- 3 new homes at 379 Naples St (Issued)0.43 mi SW
Active in "Issued" for 3.3 yr (first record Jul 20, 2023) with no new permit activity recorded in 7 mo. High-impact scale (3 housing units, $890,000 declared valuation across 3 permits).
Permit & Project History on This Parcel (2 permits, 2 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202512161934 | Accessory dwelling unit (new or conversion) | filed | App. May 27, 2026 | $1,464,117 | erect (n) type-5 3-story single family dwelling + adu (1817 silliman west). |
| 202512161936 | Accessory dwelling unit (new or conversion) | filed | App. Dec 16, 2025 | $1,459,722 | erect (n) type-5 3-story single family dwelling + adu (1817 silliman east). |