3431 Nicasio Valley Rd
Nicasio 94946 · Nicasio · Unincorporated Marin · Coordinates: 38.05635, -122.69790
Executive Verdict · Public-Records Synthesis
Zoned ARP-60 in Unincorporated Marin and mapped FEMA A flood / CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $2,083,000 ($1,833,000–$2,333,000).
Upsides & Opportunities
- ✓ 1 documented municipal building permit on file
On-parcel permit history is indexed through Aug 4, 2022, 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
- ! FEMA Special Flood Hazard Area (A, about 19% of the lot of lot)
Zone A: 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) (about 22% 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)
- ! Delayed or open permit activity on this parcel
Plumbing / water heater / sewer (172064): Issued after 5 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 3 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 4 Nicasio Creek Rd (0.3 mi NW, applied). Inspect timeline history before assuming near-term completion.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · HCD APR (½-mile radius)
Parcel & Assessor
- Lot size:
- 2,711,828 sq ft (62.26 ac)
- Assessor use:
- Rural - Improved
- Addresses on lot:
- 3431 NICASIO VALLEY RD
Zoning & Land Use
ARP-60 — Agriculture Residential Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned ARP-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 ARP-60 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned ARP-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) (about 22% of the lot, map Apr 1, 2024); Moderate Fire Hazard Severity Zone (State Responsibility Area) (about 78% of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone A: 1% annual chance flood (Special Flood Hazard Area) (about 19% of the lot); Zone X: minimal flood hazard (about 81% of the lot) · FIRM panel 06041C0275D, effective May 4, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,833,000 – $2,333,000 · Status: Off market
HUD Small Area FMR (ZIP 94946) · FY 2026
Studio $2,050 · 1BR $2,510 · 2BR $2,990 · 3BR $3,730 · 4BR $3,960
Developments Deserving Closer Investigation & Active Area Builders
- Plumbing / water heater / sewer (172064) (Issued)On this parcel
Issued after 5 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
- Accessory dwelling unit at 4 Nicasio Creek Rd (Applied)0.3 mi NW
In "Applied" for 5.7 yr (since Feb 24, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 29 Lafranchi Ln (Applied)0.46 mi NW
In "Applied" for 5.1 yr (since Oct 19, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 4299 Nicasio Valley Rd (Applied)0.3 mi N
In "Applied" for 17 mo (since Jun 9, 2025), exceeding the 253d median and 456d 75th percentile for new single-family home permits in Unincorporated Marin (n=121).
Entity-resolved builders & contractors in ½ mile: Ravig (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Richard E Wodehouse (2 in ½ mi · New garage / accessory structure); Oakwood Construction (1 in ½ mi · New single-family home); Owner Builder (1 in ½ mi · Addition (adds square footage)).
Permit & Project History on This Parcel (1 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 172064 | Plumbing / water heater / sewer | Issued | Iss. Aug 4, 2022 | $30,000 | Verizon Cell Site Improvements |