150 Seadrift Rd
Stinson Beach 94970 · Stinson Beach · Unincorporated Marin · Coordinates: 37.90464, -122.65766
Executive Verdict · Public-Records Synthesis
Zoned C-RSPS-2.9 in Unincorporated Marin and mapped FEMA VE flood / CAL FIRE high fire hazard severity zone (local responsibility area) due diligence; benchmark value $3,300,000 ($2,904,000–$3,696,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$12,800 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Feb 9, 2017).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (VE, about 87% of the lot of lot)
Zone VE: 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 (Local Responsibility Area) (about 86% 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 Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
New home at 150 Seadrift Rd: Active in "Issued" for 10.2 yr (first record Sep 6, 2016) with no new permit activity recorded in 9.9 yr. High-impact scale (1 housing unit, $1,750,000 declared valuation across 1 permit).
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 182 Seadrift Rd (0.19 mi NW, 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:
- 27,617 sq ft (0.63 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 150 SEADRIFT RD
Zoning & Land Use
C-RSPS-2.9 — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUPossible, with conditions
Zoned C-RSPS-2.9 (single-family residential): state law allows ADUs where homes are allowed. Very High Fire Hazard Severity Zone covers about 1% of the lot: cities may limit ADUs here for fire safety and evacuation.
- SB 9: two homes on the lotPossible, with conditions
Zoned C-RSPS-2.9, a single-family residential zone. Very High Fire Hazard Severity Zone (local responsibility area) covers about 1% of the lot: SB 9 requires the project to meet the fire hazard mitigation standards. FEMA Special Flood Hazard Area (Zone VE) covers about 87% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
- SB 9: split into two lotsPossible, with conditions
Zoned C-RSPS-2.9, a single-family residential zone. The lot is 27,617 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. Very High Fire Hazard Severity Zone (local responsibility area) covers about 1% of the lot: SB 9 requires the project to meet the fire hazard mitigation standards. FEMA Special Flood Hazard Area (Zone VE) covers about 87% of the lot: the project must meet the National Flood Insurance Program floodplain standards, or the lot needs a map revision.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (Local Responsibility Area) (about 86% of the lot, map Mar 24, 2025); Very High Fire Hazard Severity Zone (Local Responsibility Area) (about 1% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone VE: 1% annual chance flood (Special Flood Hazard Area) (about 87% of the lot); Zone X: 0.2% annual chance flood hazard (shaded X) (about 13% of the lot) · FIRM panel 06041C0443E, effective August 15, 2017
Surrounding Rent & Value Benchmarks (Public Records)
Range: $2,904,000 – $3,696,000 · Status: Off market
HUD Small Area FMR (ZIP 94970) · FY 2026
Studio $2,090 · 1BR $2,510 · 2BR $3,030 · 3BR $3,870 · 4BR $4,010
Developments Deserving Closer Investigation & Active Area Builders
- New home at 150 Seadrift Rd (Issued)On this parcel
Active in "Issued" for 10.2 yr (first record Sep 6, 2016) with no new permit activity recorded in 9.9 yr. High-impact scale (1 housing unit, $1,750,000 declared valuation across 1 permit).
- New home at 182 Seadrift Rd (Issued)0.19 mi NW
Active in "Issued" for 5.9 yr (first record Dec 15, 2020) with no new permit activity recorded in 5.4 yr. High-impact scale (1 housing unit, $2,875,000 declared valuation across 1 permit).
- New home at 73 Dipsea Rd (Issued)0.2 mi N
Active in "Issued" for 8 yr (first record Nov 13, 2018) with no new permit activity recorded in 7.8 yr. High-impact scale (1 housing unit, $925,000 declared valuation across 1 permit).
- New home at 196 Seadrift Rd (Issued)0.27 mi W
Active in "Issued" for 9.4 yr (first record Jun 19, 2017) with no new permit activity recorded in 9.3 yr. High-impact scale (1 housing unit, $1,485,000 declared valuation across 1 permit).
Entity-resolved builders & contractors in ½ mile: Ireland Robinson And Hadley (4 on parcel, 4 in ½ mi · Electrical / panel); Baron Henry (1 on parcel, 1 in ½ mi · HVAC / heat pump); Gubbins Building (17 in ½ mi · Remodel / interior alteration); Allen Construction (8 in ½ mi · New garage / accessory structure); Schalich Brothers Construction (5 in ½ mi · New single-family home).
Permit & Project History on This Parcel (5 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 154512 | Pool / spa | Issued | Iss. Feb 9, 2017 | $12,000 | Spa Inground - Equip Enclosure Part Of House Permit ***Third Party Review *** Extended To 2/9/20 |
| 154121 | New garage / accessory structure | Issued | Iss. Dec 19, 2016 | $750,000 | Guest House, Detached *Related To Permit W/Track #78607 ***Extended To 12/16/20 |
| 154120 | New single-family home | Issued | Iss. Dec 19, 2016 | $1,750,000 | Sfd - Demo & Rebld *Related To Permit W/Track #78608***Extended To 12/19/20 |
| 154014 | Electrical / panel | Issued | Iss. Dec 8, 2016 | $500 |