478 27th Ave
San Francisco · Outer Richmond · San Francisco · Coordinates: 37.78049, -122.48656
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 478 27TH AVE
Zoning & Land Use
RH-2 — RESIDENTIAL- HOUSE, TWO FAMILY (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-2 (two-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotUnlikely
Zoned RH-2 (two-family residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RH-2 (two-family residential), not a single-family residential zone.
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 0602980113A, 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: $1,345,000 – $1,819,000 · 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 (131 housing units across completed, permitted, and pipeline stages) and 1,178 total building permits recorded within ½ mile.
- New construction3 permits (93 units)
- Adds housing (ADU)18 permits (24 units)
- Demolition1 permit
- Additions & renovations363 permits
- Building systems583 permits
- Repairs39 permits
- Other171 permits
Developments Deserving Closer Investigation & Active Area Builders
- 478 27th Avenue & 6210 Geary Blvd. (Issued)On this parcel
Active in "Issued" for 6.9 yr (first record Dec 9, 2019) with no new permit activity recorded in 3.6 yr. High-impact scale (5 housing units, $1,966,580 declared valuation across 4 permits).
- New commercial building at 6210 Geary Bl (Issued)90 ft SE
Active in "Issued" for 6.9 yr (first record Dec 9, 2019) with no new permit activity recorded in 3.6 yr. High-impact scale ($1,250,000 declared valuation across 2 permits).
- New duplex at 576 27th Ave (Issued)0.13 mi S
Active in "Issued" for 6.8 yr (first record Jan 9, 2020) with no new permit activity recorded in 3 yr. High-impact scale (2 housing units, $1,300,404 declared valuation across 7 permits).
- 4 new homes at 342 22nd Ave (Issued)0.3 mi E
Active in "Issued" for 6.4 yr (first record Jun 4, 2020) with no new permit activity recorded in 4.3 yr. High-impact scale (4 housing units, $1,950,000 declared valuation across 3 permits).
Permit & Project History on This Parcel (5 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 202407085947 | Plan revision / deferred submittal | issued | Iss. Apr 4, 2025 | $1 | revision to pa# 202211227070, plumbing/swc system revisions in meeting with pid. ref# 201912099022 |
| 201912099030 | Demolition | issued | Iss. Mar 17, 2023 | $20,000 | to demolish 2 stories, single family resident. |
| 201912099022 | New multifamily / condos / mixed-use | issued | Iss. Mar 17, 2023 | $1,966,580 | erect 3-story, 1 basement, type 5-b, 4 senior dwelling units and 1 adu apartment building. |
| 202211227070 | Remodel / interior alteration | issued | Iss. Mar 3, 2023 | $1 | review of storm water management plan by pid. ref pa#201912099022-s |
| 202210043730 | Repair tied to a housing/code case | issued | Iss. Feb 1, 2023 | $15,000 | asbestos abatement and removal in conjunction with demolition permit #201912099030 |
State HCD Housing Element APR records on this parcel: 1 entry (report years 2020).