47 Terrace Ave
Bolinas 94924 · Bolinas · Unincorporated Marin · Coordinates: 37.90426, -122.68726
Executive Verdict · Public-Records Synthesis
Zoned C-RA-B2 in Unincorporated Marin with likely ministerial ADU eligibility and mapped FEMA VE flood / CAL FIRE high fire hazard severity zone (state responsibility area) / Alquist-Priolo fault due diligence; benchmark value $2,242,000 ($1,973,000–$2,511,000).
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
- ✓ Documented permitted upgrades (+$49,120 contributory est.)
Public building records show issued construction/renovation work on this parcel (10 total permits, latest Oct 12, 2023).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (VE, about 48% of the lot of lot)
Zone VE: 1% annual chance flood (Special Flood Hazard Area) overlaps this parcel. Expect mandatory flood insurance for federally backed loans and floodplain elevation/mitigation rules for new units or SB 9 applications.
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
Electrical / panel (155927): Issued after 2 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 25,134 sq ft (0.58 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 47 TERRACE AVE
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 VE: 1% annual chance flood (Special Flood Hazard Area) (about 48% of the lot); Zone X: minimal flood hazard (about 52% of the lot) · FIRM panel 06041C0443E, 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: $1,973,000 – $2,511,000 · 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 52 Crescente Ave (Applied)0.24 mi NE
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).
- Electrical / panel (155927) (Issued)On this parcel
Issued after 2 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
- New commercial building at 72 Wharf Rd (Issued)0.44 mi NE
Active in "Issued" for 5.5 yr (first record May 13, 2021) with no new permit activity recorded in 3.1 yr. High-impact scale ($1,980,000 declared valuation across 2 permits).
- Demolition at 32 Crescente Ave (Applied)0.27 mi N
In "Applied" for 11.1 yr (since Oct 22, 2015), exceeding the 55d median and 261d 90th percentile for demolition permits in Unincorporated Marin (n=130).
Entity-resolved builders & contractors in ½ mile: Tesla Energy (8 on parcel, 8 in ½ mi · Solar / battery storage); Aussie Roofing (2 on parcel, 2 in ½ mi · Roof replacement); Owner (5 in ½ mi · Commercial tenant improvement); Pacific Ridge Construction (4 in ½ mi · Addition (adds square footage)); Owner Builder (4 in ½ mi · Demolition).
Permit & Project History on This Parcel (10 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B35758 | Solar / battery storage | Issued | Iss. Oct 12, 2023 | $1 | Remove & replace Solar for re Roof. Aussie Roofing Inc is a holder of the CSLB C-46 License. # 823443 |
| B35755 | Roof replacement | Issued | Iss. Oct 12, 2023 | $35,000 | Re-Roof, Class A FR Comp. Shingle System w/removal of the old roof. — ReRoofing |
| 164926 | Solar / battery storage | Issued | Iss. Jun 18, 2020 | $14,000 | Photovoltaic 4.76w , Energy Storage System |
| 163690 | Roof replacement | Issued | Iss. Dec 23, 2019 | $17,700 | Reroof |
| 163689 | Solar / battery storage | Issued | Iss. Dec 23, 2019 |