4680 Chileno Valley Rd
Petaluma 94952 · Unincorporated Marin · Coordinates: 38.20573, -122.78356
Executive Verdict · Public-Records Synthesis
Zoned A60 in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (state responsibility area) due diligence.
Upsides & Opportunities
- ✓ 5 documented municipal building permits on file
On-parcel permit history is indexed through Dec 28, 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
- ! 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)
- ! Delayed or open permit activity on this parcel
Pool / spa (173078): Issued after 2.2 yr (5.8× the 136d median) — slower than 90% of pool / spa permits in Unincorporated Marin (median 136d, 90th pct 393d, n=162).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 1,068,353 sq ft (24.53 ac)
- Assessor use:
- Rural - Improved
- Addresses on lot:
- 4680 CHILENO VALLEY RD
Zoning & Land Use
A60 — Agriculture and Conservation (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A60 (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 A60 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned A60 (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) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0125D, effective May 4, 2009
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
HUD Small Area FMR (ZIP 94952) · FY 2026
Studio $2,050 · 1BR $2,510 · 2BR $2,990 · 3BR $4,010 · 4BR $4,280
Nearby Activity (½ mile radius, since —)
0 active or recent development projects and 0 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- Pool / spa (173078) (Issued)On this parcel
Issued after 2.2 yr (5.8× the 136d median) — slower than 90% of pool / spa permits in Unincorporated Marin (median 136d, 90th pct 393d, n=162).
- Other (166135) (Issued)On this parcel
Issued after 2 mo — above the 75th percentile for other permits in Unincorporated Marin (median 0d, 75th pct 1d, n=1,560).
Entity-resolved builders & contractors in ½ mile: Owner (2 on parcel, 2 in ½ mi · Other); Charles Davidson Electric (1 on parcel, 1 in ½ mi · Solar / battery storage); Owner Builder (1 on parcel, 1 in ½ mi · Other); Michael Boehme (1 on parcel, 1 in ½ mi · EV charger).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 173078 | Pool / spa | Issued | Iss. Dec 28, 2022 | $75,000 | New Pool |
| B26069 | EV charger | Issued | Iss. Jun 17, 2021 | $1,500 | Replace Existing 200 Amp Panel with a New 400 Amp Electrical Panel — Service Upgrade, EV Charging Station |
| 166665 | Solar / battery storage | Issued | Iss. Dec 23, 2020 | $88,828 | 16.320kw Photovoltaic & Energy Storage System |
| 166135 | Other | Issued | Iss. Nov 3, 2020 | $20,000 | Hay Storage Barn, Ag Exempt |
| 149291 | Other | Issued | Iss. Oct 7, 2015 | $9,000 |