370 Aspen Rd
Bolinas 94924 · Bolinas · Unincorporated Marin · Coordinates: 37.90592, -122.69782
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) due diligence; benchmark value $1,968,000 ($1,732,000–$2,204,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone C-RA-B2 allows residential use qualifying for ministerial ADU review under state law (1 ADU permit permitted within ¼ mile in 36 months).
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ 3 documented municipal building permits on file
On-parcel permit history is indexed through Dec 28, 2021, letting you verify roof, HVAC, electrical, or structural work against seller disclosures.
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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 161 Elm Rd (0.22 mi S, issued). Inspect timeline history before assuming near-term completion.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · HCD APR (½-mile radius)
- ! Year 1 Prop 13 tax reset (~$23,082/yr at $1,968,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,924/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Parcel & Assessor
- Lot size:
- —
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 370 ASPEN 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 06041C0440E, effective August 15, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,732,000 – $2,204,000 · 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
- New home at 161 Elm Rd (Issued)0.22 mi S
Active in "Issued" for 5 yr (first record Nov 17, 2021) with no new permit activity recorded in 3.2 yr. High-impact scale (1 housing unit, $950,000 declared valuation across 1 permit).
- New home at 185 Elm Rd (Issued)0.29 mi S
Active in "Issued" for 3.2 yr (first record Aug 24, 2023) with no new permit activity recorded in 2.3 yr. High-impact scale (1 housing unit, $850,000 declared valuation across 1 permit).
- Accessory dwelling unit at 410 Cedar Rd (Applied)0.12 mi W
In "Applied" for 3.6 yr (since Apr 4, 2023), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home at 347 Aspen Rd (Issued)250 ft S
Active in "Issued" for 4.1 yr (first record Sep 28, 2022) with no new permit activity recorded in 3.1 yr.
Entity-resolved builders & contractors in ½ mile: Metal Roof (1 on parcel, 1 in ½ mi · Roof replacement); Peter Levi Plumbing (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Lowes Electric (1 on parcel, 1 in ½ mi · Electrical / panel); Owner Builder (8 in ½ mi · Demolition); Vida Building (5 in ½ mi · New garage / accessory structure).
Permit & Project History on This Parcel (3 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B28181 | Electrical / panel | Issued | Iss. Dec 28, 2021 | $4,500 | Emergency panel replacement of 200 amp main service panel with new 200 amp main service panel. Burned buss bar due to PG… |
| B20579 | Plumbing / water heater / sewer | Issued | Iss. Dec 11, 2019 | $8,661 | CHANGE FROM AN ELECTRIC TANK WATER HEATER TO A ELECTRIC TANKLESS WATER HEATER — Replace Plumbing Fixtures(s) |
| 146220 | Roof replacement | Issued | Iss. Mar 12, 2015 | $17,450 | Roof ***Expired |