46 Barranca Rd
Lagunitas 94938 · San Geronimo Valley · Unincorporated Marin · Coordinates: 38.02376, -122.69735
Executive Verdict · Public-Records Synthesis
Zoned ARP-2-SGV in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,043,000 ($918,000–$1,168,000).
Upsides & Opportunities
- ✓ 3 documented municipal building permits on file
On-parcel permit history is indexed through Jun 9, 2026, 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
General repair (181866): Issued after 14 mo (5.1× the 83d median) — slower than 90% of general repair permits in Unincorporated Marin (median 83d, 90th pct 328d, n=693).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 2 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 5 Barranca Rd (0.27 mi SW, 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:
- 108,552 sq ft (2.49 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 46 BARRANCA RD; 48 BARRANCA RD
Zoning & Land Use
ARP-2-SGV — Agriculture Residential Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned ARP-2-SGV (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-2-SGV (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned ARP-2-SGV (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 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: $918,000 – $1,168,000 · Status: Off market
HUD Small Area FMR (ZIP 94938) · FY 2026
Studio $2,170 · 1BR $2,610 · 2BR $3,150 · 3BR $4,020 · 4BR $4,200
Developments Deserving Closer Investigation & Active Area Builders
- General repair (181866) (Issued)On this parcel
Issued after 14 mo (5.1× the 83d median) — slower than 90% of general repair permits in Unincorporated Marin (median 83d, 90th pct 328d, n=693).
- Accessory dwelling unit at 5 Barranca Rd (Applied)0.27 mi SW
In "Applied" for 7.8 yr (since Feb 7, 2019), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 228 Arroyo Rd A K A (Issued)0.3 mi W
Active in "Issued" for 7.9 yr (first record Dec 6, 2018) with no new permit activity recorded in 7.7 yr.
Entity-resolved builders & contractors in ½ mile: J And J Electric (2 on parcel, 2 in ½ mi · Electrical / panel); Mathew Phelps Enterprises (1 on parcel, 1 in ½ mi · General repair); Owner Builder (2 in ½ mi · Accessory dwelling unit (new or conversion)); Owner (2 in ½ mi · Addition (adds square footage)); Brownco Construction And Dev (1 in ½ mi · Commercial tenant improvement).
Permit & Project History on This Parcel (3 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 181866 | General repair | Issued | Iss. Jun 9, 2026 | $25,162 | Mitigate Foundation Settlement Including Stabilizing & Expanding A Section Of 1st Floor Retaining Wall |
| B23703 | Electrical / panel | Issued | Iss. Sep 30, 2020 | $3,900 | Adding batteries to an existing storage system. — Service Upgrade |
| B14434 | Electrical / panel | Issued | Iss. Mar 5, 2018 | $6,000 | Upgrade existing 200 Amp, electric to 400 Amp main panel. — Service Upgrade |