271 Wetmore Ln
Petaluma 94952 · Unincorporated Marin · Coordinates: 38.19354, -122.69428
Executive Verdict · Public-Records Synthesis
Zoned A60 in Unincorporated Marin and mapped FEMA A flood / CAL FIRE moderate 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 Oct 26, 2023, 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 6% 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 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
New home at 271 Wetmore Ln: Active in "Issued" for 4.8 yr (first record Jan 18, 2022) with no new permit activity recorded in 3 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
Parcel & Assessor
- Lot size:
- 1,097,756 sq ft (25.20 ac)
- Assessor use:
- Agricultural - Unimproved
- Addresses on lot:
- 271 WETMORE LN
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
- Moderate Fire Hazard Severity Zone (State Responsibility Area) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone A: 1% annual chance flood (Special Flood Hazard Area) (about 6% of the lot); Zone X: minimal flood hazard (about 94% of the lot) · FIRM panel 06041C0150D, 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.
- Additions & renovations1 permit
- Repairs1 permit
Developments Deserving Closer Investigation & Active Area Builders
- New home at 271 Wetmore Ln (Issued)On this parcel
Active in "Issued" for 4.8 yr (first record Jan 18, 2022) with no new permit activity recorded in 3 yr.
- Addition (adds square footage) (175321) (Issued)On this parcel
Issued after 21 mo (4.0× the 160d median) — slower than 90% of addition (adds square footage) permits in Unincorporated Marin (median 160d, 90th pct 440d, n=316).
- Addition (adds square footage) (175320) (Issued)On this parcel
Issued after 21 mo (4.0× the 160d median) — slower than 90% of addition (adds square footage) permits in Unincorporated Marin (median 160d, 90th pct 440d, n=316).
- Addition (adds square footage) (175319) (Issued)On this parcel
Issued after 21 mo (4.0× the 160d median) — slower than 90% of addition (adds square footage) permits in Unincorporated Marin (median 160d, 90th pct 440d, n=316).
Entity-resolved builders & contractors in ½ mile: Owner Builder (4 on parcel, 5 in ½ mi · Addition (adds square footage)).
Permit & Project History on This Parcel (5 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 175321 | Addition (adds square footage) | Issued | Iss. Oct 26, 2023 | $224,375 | Guest House |
| 175320 | Addition (adds square footage) | Issued | Iss. Oct 26, 2023 | $196,875 | Office/Fitness Structure |
| 175319 | Addition (adds square footage) | Issued | Iss. Oct 26, 2023 | $342,875 | Bedroom/Bath Structure |
| 175318 | New single-family home | Issued | Iss. Oct 26, 2023 | $485,875 | S F D; Decks; Spa; Firepit |