10 Olema Bolinas Rd
Bolinas 94924 · Bolinas · Unincorporated Marin · Coordinates: 37.90986, -122.68729
Executive Verdict · Public-Records Synthesis
Zoned C-RA-B2 in Unincorporated Marin with likely ministerial ADU eligibility and mapped CAL FIRE high fire hazard severity zone (state responsibility area) / Alquist-Priolo fault due diligence; benchmark value $2,230,000 ($1,962,000–$2,498,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone C-RA-B2 allows residential use qualifying for ministerial ADU review under state law (4 ADU permits permitted within ¼ mile in 36 months).
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ Documented permitted upgrades (+$208,000 contributory est.)
Public building records show issued construction/renovation work on this parcel (13 total permits, latest Jul 8, 2026).
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)
all 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 (all 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
Accessory dwelling unit at 12 Olema Bolinas Rd: Active in "Issued" for 10.7 yr (first record Mar 8, 2016) with no new permit activity recorded in 5.6 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 8,451 sq ft (0.19 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 10 OLEMA BOLINAS RD; 12 OLEMA BOLINAS RD
Zoning & Land Use
C-RA-B2 — Residential Agriculture (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned C-RA-B2 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned C-RA-B2 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
- SB 9: split into two lotsCan't tell
Zoned C-RA-B2 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
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 (all of the lot) · FIRM panel 06041C0441E, effective August 15, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Alquist-Priolo Earthquake Fault Zone (Bolinas quadrangle) (all of the lot)
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,962,000 – $2,498,000 · 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
- Accessory dwelling unit at 12 Olema Bolinas Rd (Issued)On this parcel
Active in "Issued" for 10.7 yr (first record Mar 8, 2016) with no new permit activity recorded in 5.6 yr.
- New home at 52 Crescente Ave (Applied)0.25 mi SE
In "Applied" for 2.3 yr (since Jul 11, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121). High-impact scale (1 housing unit, $2,750,000 declared valuation across 1 permit).
- General repair (167473) (Issued)On this parcel
Issued after 5 yr (22.2× the 83d median) — slower than 90% of general repair permits in Unincorporated Marin (median 83d, 90th pct 328d, n=693).
- General repair (167472) (Issued)On this parcel
Issued after 5 yr (22.2× the 83d median) — slower than 90% of general repair permits in Unincorporated Marin (median 83d, 90th pct 328d, n=693).
Entity-resolved builders & contractors in ½ mile: Owner (6 on parcel, 11 in ½ mi · Windows / doors / siding); Pmm Construction (5 on parcel, 5 in ½ mi · General repair); Sunshine Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Martinelli Electric (1 on parcel, 1 in ½ mi · Electrical / panel); Owner Builder (5 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (13 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B47443 | Windows / doors / siding | Issued | Iss. Jul 8, 2026 | $20,000 | Siding Replacement |
| B47442 | Windows / doors / siding | Issued | Iss. Jul 8, 2026 | $10,000 | Non-structural Door/Window Replacement |
| B39673 | Roof replacement | Issued | Iss. Oct 2, 2024 | $25,000 | Home reroof, t/o existing roof, 2500 sp.ft., install new GAF 30yr comp shingles, haul away debris. — ReRoofing |
| B37737 | Windows / doors / siding | Issued | Iss. Apr 21, 2024 | $25,000 | Replace old single-pane windows & doors with new Andersen (400 Series) on north and west sides of house. — Non-structura… |