77 Fawn Dr
San Anselmo 94960 · Sleepy Hollow · Unincorporated Marin · Coordinates: 38.00260, -122.57374
Executive Verdict · Public-Records Synthesis
Zoned R1-BD in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,990,000 ($1,751,000–$2,229,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1-BD supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 20,909 sq ft lot. Local precedent is active with 2 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$19,071 contributory est.)
Public building records show issued construction/renovation work on this parcel (5 total permits, latest Jan 7, 2026).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Sleepy Hollow
32 substantial renovation & housing permits over 24 months (32.7 per 1,000 parcels vs. 16.3 citywide baseline) (#4 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Sleepy Hollow)
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 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 666 Fawn Dr (0.4 mi E, applied). 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 (~$23,335/yr at $1,990,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,945/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:
- 20,909 sq ft (0.48 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 77 FAWN DR
Zoning & Land Use
R1-BD — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-BD (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1-BD, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1-BD, a single-family residential zone. The lot is 20,909 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original.
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 X: minimal flood hazard (all of the lot) · FIRM panel 06041C0289D, 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: $1,751,000 – $2,229,000 · Status: Off market
HUD Small Area FMR (ZIP 94960) · FY 2026
Studio $2,510 · 1BR $3,010 · 2BR $3,640 · 3BR $4,650 · 4BR $4,820
Developments Deserving Closer Investigation & Active Area Builders
- New home at 666 Fawn Dr (Applied)0.4 mi E
In "Applied" for 7.5 yr (since Apr 29, 2019), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121). High-impact scale (1 housing unit, $1,000,000 declared valuation across 1 permit).
- New home at 830 Butterfield Rd (Issued)290 ft NW
Active in "Issued" for 8.3 yr (first record Aug 9, 2018) with no new permit activity recorded in 7.6 yr. High-impact scale (1 housing unit, $1,097,000 declared valuation across 2 permits).
- New home at 116 Holstein Rd (Issued)0.42 mi S
Active in "Issued" for 12.9 yr (first record Dec 24, 2013) with no new permit activity recorded in 12.4 yr. High-impact scale (1 housing unit, $800,000 declared valuation across 1 permit).
- Demolition at 854 Butterfield Ln (Applied)310 ft N
In "Applied" for 2.3 yr (since Aug 1, 2024), exceeding the 55d median and 261d 90th percentile for demolition permits in Unincorporated Marin (n=130).
Entity-resolved builders & contractors in ½ mile: Juan Calmell (1 on parcel, 3 in ½ mi · Remodel / interior alteration); Capstone Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Tesla Energy (1 on parcel, 1 in ½ mi · Solar / battery storage); Adams Refrigeration Service A California (1 on parcel, 1 in ½ mi · HVAC / heat pump); Tesla Energy Operations (1 on parcel, 1 in ½ mi · Solar / battery storage).
Permit & Project History on This Parcel (5 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B45364 | Solar / battery storage | Issued | Iss. Jan 7, 2026 | $2,500 | Remove and reinstall (24) roof mount solar panels at 7.68 kW |
| B45282 | Roof replacement | Issued | Iss. Dec 29, 2025 | $38,350 | Remove existing roof. Install with new Lifetime Class A composition shingles. — ReRoofing |
| B24195 | HVAC / heat pump | Issued | Iss. Nov 16, 2020 | $15,000 | REPLACE FURNACE AND HEAT PUMP SYSTEM. INSTALL 96% FURNACE AND 17 SEER HEAT PUMP — Replace Mechanical Appliance |
| 165180 | Solar / battery storage | Issued | Iss. Jul 22, 2020 | $32,370 | 7.68 Photovoiltaic & Energu Storage System |
| 142676 | Remodel / interior alteration | Issued |