847 Duncan St
San Francisco · Noe Valley · San Francisco · Coordinates: 37.74511, -122.43915
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 847 DUNCAN 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 5,704 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: $1,700,000 – $2,300,000 · 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)
28 active or recent development projects (43 housing units across completed, permitted, and pipeline stages) and 1,065 total building permits recorded within ½ mile.
- New construction3 permits (9 units)
Developments Deserving Closer Investigation & Active Area Builders
- 20 new homes at 1950 Diamond St (Applied)0.26 mi SE
Active in "Applied" for 4.7 yr (first record Feb 3, 2022) with no new permit activity recorded in 4.5 yr. High-impact scale (20 housing units, 6 deed-restricted affordable, $18,275,000 declared valuation across 1 permit).
- Accessory dwelling unit at 5235 Diamond Heights Bl (Applied)220 ft SE
Active in "Applied" for 3.8 yr (first record Dec 22, 2022) with no new permit activity recorded in 3.8 yr. High-impact scale (7 housing units, $1,086,803 declared valuation across 1 permit).
- Accessory dwelling unit at 5285 Diamond Heights Bl (Applied)500 ft SE
Active in "Applied" for 3.8 yr (first record Dec 22, 2022) with no new permit activity recorded in 3.8 yr. High-impact scale (8 housing units, $1,158,845 declared valuation across 2 permits).
- 2 new homes at 654 28th St (Applied)0.12 mi E
Active in "Applied" for 5.6 yr (first record Apr 8, 2021) with no new permit activity recorded in 2.7 yr. High-impact scale (2 housing units, $1,134,414 declared valuation across 5 permits).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202212208811 | Demolition | withdrawn | App. Dec 20, 2022 | $2,750 | 202212208811 |
| 202212208810 | Demolition | withdrawn | App. Dec 20, 2022 | $10,650 | demolition of 2-story (1-story over basement), type vb, single family dwelling. |
| 202212208806 | New duplex / half-plex | withdrawn | App. Dec 20, 2022 | $1,750,000 | erect a 4-story (3-story over 1-basement), type vb, residential duplex per sb-9. unit 1 islocated on lower floor. unit 2… |
| 202112033706 | Roof replacement | issued | Iss. Dec 6, 2021 | $9,000 |