1870 Fallon Two Rock Rd
Petaluma 94952 · Unincorporated Marin · Coordinates: 38.27170, -122.85613
Executive Verdict · Public-Records Synthesis
Zoned A40 in Unincorporated Marin and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence.
Upsides & Opportunities
- ✓ 4 documented municipal building permits on file
On-parcel permit history is indexed through Sep 26, 2019, 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)
- ! Delayed or open permit activity on this parcel
Mixed-use development at 1870 Fallon Two Rock Rd: Active in "Issued" for 8.6 yr (first record Apr 5, 2018) with no new permit activity recorded in 7.1 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 4,047,987 sq ft (92.93 ac)
- Assessor use:
- Agricultural - Improved
- Addresses on lot:
- 1870 FALLON TWO ROCK RD
Zoning & Land Use
A40 — Agriculture and Conservation (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A40 (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 A40 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned A40 (agricultural), 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 06041C0075D, 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 November 2024)
0 active or recent development projects and 2 total building permits recorded within ½ mile.
- Building systems1 permit
- Other1 permit
Developments Deserving Closer Investigation & Active Area Builders
- Mixed-use development at 1870 Fallon Two Rock Rd (Issued)On this parcel
Active in "Issued" for 8.6 yr (first record Apr 5, 2018) with no new permit activity recorded in 7.1 yr.
- Other (148035) (Issued)On this parcel
Issued after 3 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
Entity-resolved builders & contractors in ½ mile: Owner Builder (2 on parcel, 2 in ½ mi · New commercial / non-residential building); Owner (1 on parcel, 1 in ½ mi · Other).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 162788 | New single-family home | Issued | Iss. Sep 26, 2019 | $115,000 | Manuf Home T.D. 11/27/18 |
| 159741 | New commercial / non-residential building | Issued | Iss. Oct 1, 2018 | $275,000 | Ag Exempt Barn For Chicks |
| 148038 | Electrical / panel | Issued | Iss. Jul 16, 2015 | $2,500 | Electrical |
| 148035 | Other | Issued | Iss. Jul 16, 2015 | $220,000 | Organic Chicken House |
1 entry (report years 2019).