436 Lyon St
San Francisco · Lone Mountain/USF · San Francisco · Coordinates: 37.77491, -122.44251
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- —
- Addresses on lot:
- 436 LYON ST
Zoning & Land Use
RH-3 — RESIDENTIAL- HOUSE, THREE FAMILY (Residential)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RH-3 (multifamily residential): state law allows ADUs where homes are allowed. On a multifamily lot the state allowance is different: ADUs in non-living space of the building, plus up to eight detached ADUs.
- SB 9: two homes on the lotUnlikely
Zoned RH-3 (multifamily residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RH-3 (multifamily 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 0602980114A, 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: $1,435,000 – $1,941,000 · 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)
34 active or recent development projects (350 housing units across completed, permitted, and pipeline stages) and 1,226 total building permits recorded within ½ mile.
- New construction4 permits (313 units)
Developments Deserving Closer Investigation & Active Area Builders
- New home at 436 Lyon St (Issued)On this parcel
Active in "Issued" for 6.6 yr (first record Mar 10, 2020) with no new permit activity recorded in 3.8 yr.
- 107 new homes at 650 Divisadero St (Applied)0.28 mi E
Active in "Applied" for 15 mo (first record Aug 6, 2025) with no new permit activity recorded in 15 mo. High-impact scale (107 housing units, $58,874,000 declared valuation across 1 permit).
- Accessory dwelling unit at 859 Baker St (Approved)0.29 mi N
Active in "Approved" for 3.8 yr (first record Jan 20, 2023) with no new permit activity recorded in 14 mo. current_status changed to "approved" in snapshot Oct 24, 2026.
- 2 new homes at 301 Lyon St (Issued)470 ft S
Active in "Issued" for 3.3 yr (first record Jul 18, 2023) with no new permit activity recorded in 2.3 yr. High-impact scale (2 housing units, $2,000,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (9 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| S20260316508 | Solar / battery storage | issued | Iss. Apr 3, 2026 | $19,000 | solar permit: mounted: roof, ballasted: n, including 1 energy storage unit, of 240 vac, with 13.50 kwh each in capacity,… |
| 202410012055 | Remodel / interior alteration | complete | Iss. Oct 1, 2024 | $1 | to obtain final inspection for work approved under pa# 2019-0524-1674, 2018-1206-7604, and 2019-0226-3807. all work is c… |
| 202003106639 | New single-family home | issued | Iss. Jul 15, 2021 | $125,000 | erect a 1 story, 1 dwelling single family home with no basement.type 5-a |
| 202003106637 | Demolition | issued | Iss. Jul 15, 2021 |