680 Bolinas Rd
Fairfax 94930 · Unincorporated Fairfax · Unincorporated Marin · Coordinates: 37.97327, -122.60349
Executive Verdict · Public-Records Synthesis
Zoned RMP-1 in Unincorporated Marin with likely ministerial ADU eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,397,000 ($1,229,000–$1,565,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone RMP-1 allows residential use qualifying for ministerial ADU review under state law.
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ 2 documented municipal building permits on file
On-parcel permit history is indexed through Apr 21, 2026, 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 Moderate 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 (0.42 mi NE, entitled). 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 (~$16,516/yr at $1,397,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,376/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:
- 30,971 sq ft (0.71 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 680 BOLINAS RD
Zoning & Land Use
RMP-1 — Residential Multiple Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RMP-1 (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 RMP-1 (multifamily residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned RMP-1 (multifamily residential), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Moderate 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 06041C0451E, effective March 17, 2014
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,229,000 – $1,565,000 · Status: Off market
HUD Small Area FMR (ZIP 94930) · FY 2026
Studio $2,230 · 1BR $2,680 · 2BR $3,240 · 3BR $4,140 · 4BR $4,290
Developments Deserving Closer Investigation & Active Area Builders
- New home (Entitled)0.42 mi NE
In "Entitled" for 8.1 yr (since Oct 23, 2018), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)0.15 mi N
Active in "Issued" for 5.6 yr (first record Apr 19, 2021) with no new permit activity recorded in 5.6 yr.
- New home at 740 Bolinas Rd (Issued)0.18 mi W
Active in "Issued" for 2.6 yr (first record Apr 12, 2024) with no new permit activity recorded in 2.6 yr.
- New home (Issued)0.21 mi NE
Active in "Issued" for 22 mo (first record Jan 10, 2025) with no new permit activity recorded in 22 mo.
Entity-resolved builders & contractors in ½ mile: Apollo Building And Roofing Group (1 on parcel, 1 in ½ mi · Roof replacement); Norcal Foundation Support (1 on parcel, 1 in ½ mi · General repair); Owner Builder (2 in ½ mi · Addition (adds square footage)).
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B46549 | Roof replacement | Issued | Iss. Apr 21, 2026 | $30,000 | ReRoofing |
| 166476 | General repair | Issued | Iss. Dec 7, 2020 | $23,974 | Install Push Piers T.D. 10-22-20 |