16 De Long St
San Francisco · Outer Mission · San Francisco · Coordinates: 37.70984, -122.45857
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 16A DE LONG ST; 16 DE LONG 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 lotsUnlikely
Zoned RH-1, a single-family residential zone. The lot is 1,640 sq ft on the parcel map; a split needs at least 2,400 sq ft (two lots of 1,200 sq ft or more).
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: $1,284,000 – $1,738,000 · 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)
26 active or recent development projects (36 housing units across completed, permitted, and pipeline stages) and 342 total building permits recorded within ½ mile.
- New construction5 permits (12 units)
- Adds housing (ADU)
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 16 De Long St (Issued)On this parcel
Active in "Issued" for 4 yr (first record Oct 14, 2022) with no new permit activity recorded in 2.2 yr.
- New commercial building at 261 Broad St (Issued)0.26 mi NW
Active in "Issued" for 3.2 yr (first record Aug 24, 2023) with no new permit activity recorded in 15 mo. High-impact scale ($2,282,050 declared valuation across 2 permits).
- 6 new homes at 2834 San Jose Ave (Applied)0.29 mi NE
Active in "Applied" for 13 mo (first record Sep 23, 2025) with no new permit activity recorded in 13 mo. High-impact scale (6 housing units, $1,000,000 declared valuation across 2 permits).
- New home at 287v Minerva St (Issued)0.43 mi NW
Active in "Issued" for 7.7 yr (first record Feb 19, 2019) with no new permit activity recorded in 4.5 yr. High-impact scale (1 housing unit, $1,050,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (2 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202210144379 | Accessory dwelling unit (new or conversion) | suspend | Iss. Aug 5, 2024 | $337,267 | to comply with nov# 202288533. repair existing fire-damaged single family dwelling in-kind. add one new state-attached a… |
| 201601116739 | Windows / doors / siding | complete | Iss. Oct 11, 2016 | $30,000 | comply with complaint 201611116, add 1 bathroom, remodel (e) bathroom & replace interior finishes with 5/8" type "x" gyp… |
State HCD Housing Element APR records on this parcel: 1 entry (report years 2024).