155 Mangels Ave
San Francisco · West of Twin Peaks · San Francisco · Coordinates: 37.73287, -122.44102
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 155 MANGELS 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 2,501 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)
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)
17 active or recent development projects (17 housing units across completed, permitted, and pipeline stages) and 903 total building permits recorded within ½ mile.
- Adds housing (ADU)15 permits (15 units)
- Additions & renovations277 permits
- Building systems498 permits
- Repairs37 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home at 149 Mangels Ave (Issued)80 ft E
Active in "Issued" for 10.3 yr (first record Jul 12, 2016) with no new permit activity recorded in 5.1 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 4 permits).
- New home at 1247 Bosworth St (Issued)0.2 mi N
Active in "Issued" for 9.9 yr (first record Dec 2, 2016) with no new permit activity recorded in 4.2 yr. High-impact scale (1 housing unit, $1,093,349 declared valuation across 2 permits).
- 5 new homes at 1786 San Jose Ave (Applied)0.26 mi S
Active in "Applied" for 7.3 yr (first record Jul 19, 2019) with no new permit activity recorded in 6.7 yr. High-impact scale (5 housing units, $3,640,657 declared valuation across 2 permits).
- New home at 1317 Bosworth St (Applied)0.26 mi N
Active in "Applied" for 4.4 yr (first record Jun 8, 2022) with no new permit activity recorded in 4.4 yr. High-impact scale (1 housing unit, $977,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (2 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202603107216 | Accessory dwelling unit (new or conversion) | filed | App. Apr 20, 2026 | $89,000 | convert garage to jr. adu (<500 sq ft). provide access to jr.adu by modifying the driveway. |
| 202508012115 | Remodel / interior alteration | complete | Iss. Aug 7, 2025 | $25,000 | only work is to add new restroom (35 sqft) and new laundry room (15 sqft) |