No situs address on record
· Tamalpais · Unincorporated Marin · Coordinates: 37.87654, -122.52671
Executive Verdict · Public-Records Synthesis
Zoned OA in Unincorporated Marin and mapped FEMA AE flood / CAL FIRE high fire hazard severity zone (state responsibility area) due diligence; benchmark value $2,029,000 ($1,725,000–$2,333,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$18,681 contributory est.)
Public building records show issued construction/renovation work on this parcel (2 total permits, latest Feb 14, 2024).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Tamalpais
50 substantial renovation & housing permits over 24 months (20.5 per 1,000 parcels vs. 16.3 citywide baseline) (#3 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Tamalpais)
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (AE, about 19% of the lot of lot)
Zone AE: 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 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 535 Tennessee Valley Rd (adu 531) (0.29 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)
- ! Year 1 Prop 13 tax reset (~$23,784/yr at $2,029,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,982/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:
- 26,920 sq ft (0.62 ac)
- Assessor use:
- Tax Exempt
- Addresses on lot:
- 1
Zoning & Land Use
OA — Open Area (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUUnlikely
Zoned OA (open space): the zone doesn't allow homes, so state ADU rules don't apply.
- SB 9: two homes on the lotUnlikely
Zoned OA (open space), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned OA (open space), 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 AE: 1% annual chance flood (Special Flood Hazard Area) (about 19% of the lot); Zone AE: regulatory floodway (Special Flood Hazard Area) (about 81% of the lot) · FIRM panel 06041C0469F, effective March 16, 2016
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,725,000 – $2,333,000 · Status: Off market
HUD Metro FMR (San Francisco, CA HUD Metro FMR Area) · FY 2026
Studio $2,485 · 1BR $2,977 · 2BR $3,604 · 3BR $4,604 · 4BR $4,772
Nearby Activity (½ mile radius, since November 2024)
16 active or recent development projects (14 housing units across completed, permitted, and pipeline stages) and 528 total building permits recorded within ½ mile.
- New construction17 permits
Developments Deserving Closer Investigation & Active Area Builders
- New home at 535 Tennessee Valley Rd (adu 531) (Issued)0.29 mi S
Active in "Issued" for 6 yr (first record Oct 29, 2020) with no new permit activity recorded in 4 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
- New commercial building at 201 Flamingo Rd (aka 205) (Issued)0.31 mi N
Active in "Issued" for 11.7 yr (first record Feb 17, 2015) with no new permit activity recorded in 11.2 yr. High-impact scale ($3,938,400 declared valuation across 3 permits).
- New home at 334 Dolan Ave (Issued)0.35 mi NW
Active in "Issued" for 8.2 yr (first record Sep 5, 2018) with no new permit activity recorded in 8 yr. High-impact scale (1 housing unit, $759,000 declared valuation across 1 permit).
- Accessory dwelling unit at 242 Morning Sun Ave (Applied)0.48 mi N
In "Applied" for 2 yr (since Nov 21, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
Entity-resolved builders & contractors in ½ mile: Dmr Builders (1 on parcel, 1 in ½ mi · Commercial tenant improvement); The Shed Shop (1 on parcel, 1 in ½ mi · Remodel / interior alteration); Owner Builder (59 in ½ mi · Remodel / interior alteration); Owner (40 in ½ mi · Remodel / interior alteration); Ga Higgins (8 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (2 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 175988 | Commercial tenant improvement | Issued | Iss. Feb 14, 2024 | $50,000 | Renovation Of (E) Restrooms & Upgrade (E) Drinking Fountain To Meet A D A Requirements |
| 158432 | Remodel / interior alteration | Issued | Iss. May 9, 2018 | $49,950 | Storage For Archives T V I C T.D. 1/16/18 |