436 Wilson Ave
Novato 94947 · Indian Valley · Unincorporated Marin · Coordinates: 38.09201, -122.60402
Executive Verdict · Public-Records Synthesis
Zoned A2-B4 in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,288,000 ($1,133,000–$1,443,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$18,480 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Mar 26, 2026).
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) (about 98% 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
Other (169535): Issued after 3 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: New home at 10 Tanglewood Ln (0.15 mi S, 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:
- 84,289 sq ft (1.94 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 436 WILSON AVE
Zoning & Land Use
A2-B4 — Agriculture Limited (Unincorporated Marin)
Undesignated — Undesignated (Novato)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A2-B4 (agricultural): ADUs are allowed if the zone allows a home, which depends on the zone's rules. The parcel point also falls in Undesignated.
- SB 9: two homes on the lotUnlikely
Zoned A2-B4 (agricultural), not a single-family residential zone. The parcel point also falls in Undesignated.
- SB 9: split into two lotsUnlikely
Zoned A2-B4 (agricultural), not a single-family residential zone. The parcel point also falls in Undesignated.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (State Responsibility Area) (about 98% of the lot, map Apr 1, 2024); Moderate Fire Hazard Severity Zone (State Responsibility Area) (about 2% of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0278D, 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: $1,133,000 – $1,443,000 · Status: Off market
HUD Small Area FMR (ZIP 94947) · FY 2026
Studio $2,250 · 1BR $2,690 · 2BR $3,260 · 3BR $4,160 · 4BR $4,320
Developments Deserving Closer Investigation & Active Area Builders
- Other (169535) (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).
- New home at 10 Tanglewood Ln (Issued)0.15 mi S
Active in "Issued" for 8.5 yr (first record May 24, 2018) with no new permit activity recorded in 7.2 yr.
- Accessory dwelling unit at 441 Wilson Ave (Issued)0.18 mi W
Active in "Issued" for 5.7 yr (first record Feb 25, 2021) with no new permit activity recorded in 5.7 yr.
- Accessory dwelling unit at 443 Wilson Ave (aka 441) (Issued)0.2 mi W
Active in "Issued" for 5.4 yr (first record Jun 25, 2021) with no new permit activity recorded in 4.8 yr.
Entity-resolved builders & contractors in ½ mile: Moore Home Services (2 on parcel, 2 in ½ mi · HVAC / heat pump); Travis Builders (1 on parcel, 1 in ½ mi · Remodel / interior alteration); Wedge Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Eon Builders (1 on parcel, 1 in ½ mi · Other); Owner Builder (12 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B46308 | Other | Issued | Iss. Mar 26, 2026 | $28,007 | Replace Mechanical Appliance |
| B38559 | HVAC / heat pump | Issued | Iss. Jun 28, 2024 | $21,245 | Replaced 12 supply runs R8 Alumaflex under the home — Replace Ductwork |
| B31891 | Roof replacement | Issued | Iss. Nov 29, 2022 | $26,350 | Comp Roof-Remove existing23 sq ft roof down to sheathing. Prepare existing sheathing for new roof. Install GAF Timberlin… |
| 169535 | Other | Issued | Iss. Oct 6, 2021 | $22,000 | Deck & Stairs |
| 151133 | Remodel / interior alteration | Issued | Iss. Mar 10, 2016 |