1 Mountain King Rd
Lagunitas 94938 · San Geronimo Valley · Unincorporated Marin · Coordinates: 38.02817, -122.71487
Executive Verdict · Public-Records Synthesis
Zoned ARP-20-SGV in Unincorporated Marin and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,043,000 ($918,000–$1,168,000).
Upsides & Opportunities
- ✓ 23 documented municipal building permits on file
On-parcel permit history is indexed through May 29, 2025, 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 D: possible but undetermined flood hazard)
about 9% of the lot of the parcel intersects Zone D: possible but undetermined 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
Electrical / panel (179220): Issued after 2 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! Year 1 Prop 13 tax reset (~$12,445/yr at $1,043,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,037/mo). Confirm exact Mello-Roos / CFD special assessments on the county tax bill.
Source: CA Const. Art. XIIIA (Prop 13) · County Tax Collector
Parcel & Assessor
- Lot size:
- 519,148 sq ft (11.92 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 1 MOUNTAIN KING RD
Zoning & Land Use
ARP-20-SGV — Agriculture Residential Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned ARP-20-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-20-SGV (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned ARP-20-SGV (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 D: possible but undetermined flood hazard (about 9% of the lot); Zone X: minimal flood hazard (about 91% 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
- Electrical / panel (179220) (Issued)On this parcel
Issued after 2 mo — slower than 90% of electrical / panel permits in Unincorporated Marin (median 0d, 90th pct 2d, n=3,020).
- Plumbing / water heater / sewer (92805) (Applied)On this parcel
Pending in review for 2 yr — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
- Solar / battery storage (92649) (Applied)On this parcel
Pending in review for 2.1 yr — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
- Other (173273) (Issued)On this parcel
Issued after 4 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,562).
Entity-resolved builders & contractors in ½ mile: Wsd Engineering Dba Wsd Construction (2 on parcel, 2 in ½ mi · Electrical / panel); Electric Tech Construction (1 on parcel, 1 in ½ mi · Electrical / panel); Metropolitan Electrical Construction (1 on parcel, 1 in ½ mi · New garage / accessory structure); Modus Rex (1 on parcel, 1 in ½ mi · Electrical / panel); Endeavor Wireless Construction (1 on parcel, 1 in ½ mi · Electrical / panel).
Permit & Project History on This Parcel (23 permits, 0 grouped projects)
Showing 15 most recent permits| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 179220 | Electrical / panel | Issued | Iss. May 29, 2025 | $25,000 | Upgrades To (E) Cell Tower - A T & T |
| 92805 | Plumbing / water heater / sewer | Applied | App. Nov 21, 2024 | $50,000 | Replace Back-Up Generator With 50kw Generator And 229 Gal Fuel Tank |
| 92649 | Solar / battery storage | Applied | App. Oct 3, 2024 | $34,739 | Ground Mount Solar 21 Module, 8.40 K W; Energy Storage System |
| B37663 | Roof replacement | Issued | Iss. Apr 15, 2024 | $8,500 | Sweep off existing roof material. Replace with foam overlay. 2 squares. — ReRoofing |
| 173273 | Other | Issued |