275 Wetmore Ln
Petaluma 94952 · Unincorporated Marin · Coordinates: 38.19204, -122.69660
Executive Verdict · Public-Records Synthesis
Zoned A20 in Unincorporated Marin and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence.
Upsides & Opportunities
- ✓ 2 documented municipal building permits on file
On-parcel permit history is indexed through May 19, 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
- ! 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
Demolition at 275 Wetmore Ln: Active in "Issued" for 10.4 yr (first record Jun 7, 2016) with no new permit activity recorded in 10.4 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 1 slow or stalled nearby project within ½ mile
Closest lead: New home at 271 Wetmore Ln (0.15 mi NE, issued). 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:
- 470,927 sq ft (10.81 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 275 WETMORE LN; 275 WETMORE LN A; 275 WETMORE LN B
Zoning & Land Use
A20 — Agriculture and Conservation (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A20 (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 A20 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned A20 (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 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 3 total building permits recorded within ½ mile.
- Additions & renovations1 permit
- Building systems1 permit
- Repairs1 permit
Developments Deserving Closer Investigation & Active Area Builders
- Demolition at 275 Wetmore Ln (Issued)On this parcel
Active in "Issued" for 10.4 yr (first record Jun 7, 2016) with no new permit activity recorded in 10.4 yr.
- New garage / accessory structure (174107) (Issued)On this parcel
Issued after 13 mo (2.5× the 164d median) — above the 75th percentile for new garage / accessory structure permits in Unincorporated Marin (median 164d, 75th pct 294d, n=356).
- New home at 271 Wetmore Ln (Issued)0.15 mi NE
Active in "Issued" for 4.8 yr (first record Jan 18, 2022) with no new permit activity recorded in 3 yr.
Entity-resolved builders & contractors in ½ mile: Owner Builder (1 on parcel, 5 in ½ mi · Addition (adds square footage)); Owner (1 on parcel, 1 in ½ mi · Demolition).
Permit & Project History on This Parcel (2 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 174107 | New garage / accessory structure | Issued | Iss. May 19, 2023 | $1,228,517 | Accessory Structure; Deck |
| 152549 | Demolition | Issued | Iss. Jun 27, 2016 | $2,500 | Barn Demolition |