875 Horseshoe Hill Rd
Bolinas 94924 · Bolinas · Unincorporated Marin · Coordinates: 37.93852, -122.70838
Executive Verdict · Public-Records Synthesis
Zoned C-APZ-60 in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (state responsibility area) / Alquist-Priolo fault due diligence; benchmark value $1,980,000 ($1,742,000–$2,218,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$11,592 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Aug 16, 2024).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
about 49% of the lot of the parcel intersects Zone X: minimal flood hazard. Outside mandatory federal SFHA insurance rules, but check local drainage and finished-floor requirements.
Source: FEMA National Flood Hazard Layer (parcel polygon)
- ! CAL FIRE High Fire Hazard Severity Zone (State Responsibility Area) (all of the lot of lot)
Located in a mapped Fire Hazard Severity Zone. Expect Chapter 7A ignition-resistant building standards, defensible-space inspections, and stricter property insurance underwriting.
Source: CAL FIRE FHSZ (map Apr 1, 2024)
- ! Alquist-Priolo Earthquake Fault Zone (about 89% of the lot of lot)
Intersects a State-mapped surface fault rupture zone. Adding habitable structures or subdividing typically requires a site-specific geologic fault investigation.
Source: California Geological Survey Alquist-Priolo Zones
- ! Delayed or open permit activity on this parcel
Solar / battery storage (92328): Pending in review for 2.4 yr — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 4,338,053 sq ft (99.59 ac)
- Assessor use:
- Agricultural - Improved
- Addresses on lot:
- 875 HORSESHOE HILL RD
Zoning & Land Use
C-APZ-60 — Agriculture Production Zone (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned C-APZ-60 (agricultural): ADUs are allowed if the zone allows a home, which depends on the zone's rules.
- SB 9: two homes on the lotUnlikely
Zoned C-APZ-60 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned C-APZ-60 (agricultural), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (State Responsibility Area) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (about 49% of the lot); Zone X: minimal flood hazard (about 50% of the lot) · FIRM panel 06041C0430D, effective May 4, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Alquist-Priolo Earthquake Fault Zone (Bolinas quadrangle) (about 89% of the lot)
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,742,000 – $2,218,000 · Status: Off market
HUD Small Area FMR (ZIP 94924) · FY 2026
Studio $2,050 · 1BR $2,510 · 2BR $2,990 · 3BR $3,730 · 4BR $3,960
Developments Deserving Closer Investigation & Active Area Builders
- Solar / battery storage (92328) (Applied)On this parcel
Pending in review for 2.4 yr — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
- Plumbing / water heater / sewer (171902) (Issued)On this parcel
Issued after 3 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
Entity-resolved builders & contractors in ½ mile: Rj Heffelfinger Construction (2 on parcel, 2 in ½ mi · Electrical / panel); Cynosure Building And Cbs Electrical (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Eclipse Energy And Construction (1 on parcel, 1 in ½ mi · Solar / battery storage).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B39145 | Solar / battery storage | Issued | Iss. Aug 16, 2024 | $28,000 | Solar ground mount 12.18 kw 28 panels 700' trench — New Circuits / Outlets |
| 92328 | Solar / battery storage | Applied | App. Jun 24, 2024 | $90,810 | Ground Mount Solar (12.18kw) And Trench (700ft) |
| 171902 | Plumbing / water heater / sewer | Issued | Iss. Jul 15, 2022 | $185,000 | Backup Generator; 600 A M P U; Transfer Switch; Abandon 4 Meter Mains; 1000 Gal Undrgrnd Fuel Tank M C F D |
| B28632 | Other | Issued | Iss. Feb 5, 2022 | $23 | provide emergency back up power with a generator |
| B28363 | Electrical / panel | Issued | Iss. Jan 14, 2022 |