77 Starbuck Dr
Sausalito 94965 · Muir Beach · Unincorporated Marin · Coordinates: 37.86388, -122.57915
Executive Verdict · Public-Records Synthesis
Zoned C-RA-B4 in Unincorporated Marin and mapped CAL FIRE very high fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,942,000 ($1,709,000–$2,175,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$110,000 contributory est.)
Public building records show issued construction/renovation work on this parcel (9 total permits, latest Aug 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 Very 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
Accessory dwelling unit at 77 Starbuck Dr: In "Applied" for 18 mo (since May 28, 2025), exceeding the 253d median and 456d 75th percentile for new single-family home permits in Unincorporated Marin (n=121).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 1 slow or stalled nearby project within ½ mile
Closest lead: Accessory dwelling unit at 69 Starbuck Dr (adu 69a) (210 ft SE, 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:
- 48,613 sq ft (1.12 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 77 STARBUCK DR
Zoning & Land Use
C-RA-B4 — Residential Agriculture (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUPossible, with conditions
Zoned C-RA-B4 (single-family residential): state law allows ADUs where homes are allowed. Very High Fire Hazard Severity Zone covers all of the lot: cities may limit ADUs here for fire safety and evacuation.
- SB 9: two homes on the lotCan't tell
Zoned C-RA-B4 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
- SB 9: split into two lotsCan't tell
Zoned C-RA-B4 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Very 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 06041C0505E, effective August 15, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,709,000 – $2,175,000 · Status: Off market
HUD Small Area FMR (ZIP 94965) · FY 2026
Studio $2,720 · 1BR $3,260 · 2BR $3,950 · 3BR $5,050 · 4BR $5,230
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 77 Starbuck Dr (Applied)On this parcel
In "Applied" for 18 mo (since May 28, 2025), exceeding the 253d median and 456d 75th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Plumbing / water heater / sewer (93267) (Applied)On this parcel
Pending in review for 17 mo — slower than 90% of plumbing / water heater / sewer permits in Unincorporated Marin (median 0d, 90th pct 0d, n=2,211).
- Accessory dwelling unit at 69 Starbuck Dr (adu 69a) (Issued)210 ft SE
Active in "Issued" for 2.5 yr (first record May 28, 2024) with no new permit activity recorded in 20 mo. High-impact scale (1 housing unit, $1,200,000 declared valuation across 1 permit).
- Remodel / interior alteration (181795) (Issued)On this parcel
Issued after 5 mo (1.9× the 83d median) — above the 75th percentile for remodel / interior alteration permits in Unincorporated Marin (median 83d, 75th pct 148d, n=1,054).
Entity-resolved builders & contractors in ½ mile: Phil Kline General Contractor (2 on parcel, 2 in ½ mi · General repair); Soruco Structures (1 on parcel, 1 in ½ mi · New garage / accessory structure); Maloney Construction (1 on parcel, 1 in ½ mi · General repair); Bellows Plumbing Heating And Air (1 on parcel, 1 in ½ mi · HVAC / heat pump); Stephen L Johnson Innovative (1 on parcel, 1 in ½ mi · Electrical / panel).
Permit & Project History on This Parcel (9 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 182440 | General repair | Issued | Iss. Aug 26, 2026 | $35,000 | Replace Retaining Wall |
| 94374 | Remodel / interior alteration | Applied | App. Jul 13, 2026 | $950,000 | Addition/Remodel, (N)Windows And Doors.(N) Bathroom (N) Siding (N) Skylight And Roof (N) Decks. Replace Garage *Sequenti… |
| 181795 | Remodel / interior alteration | Issued | Iss. Jun 30, 2026 | $200,000 | Remodel Upper Level |
| 93267 | Plumbing / water heater / sewer | Applied | App. Jun 12, 2025 | — | Site Retaining Walls; (N) & Relocated L P Tanks |