660 Goodhill Rd
Kentfield 94904 · Kentfield · Unincorporated Marin · Coordinates: 37.95531, -122.56962
Executive Verdict · Public-Records Synthesis
Zoned RSP-0.5 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 $2,502,000 ($2,202,000–$2,802,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned RSP-0.5 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 88,688 sq ft lot. Local precedent is active with 1 ADU permit within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$33,235 contributory est.)
Public building records show issued construction/renovation work on this parcel (6 total permits, latest Jul 17, 2020).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Kentfield
104 substantial renovation & housing permits over 24 months (41.3 per 1,000 parcels vs. 16.4 citywide baseline) (#7 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Kentfield)
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)
- ! Delayed or open permit activity on this parcel
Solar / battery storage (165143): Issued after 2 mo — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
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: Accessory dwelling unit at 432 Woodland Rd (0.49 mi SE, 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)
Parcel & Assessor
- Lot size:
- 88,688 sq ft (2.04 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 660 GOODHILL RD
Zoning & Land Use
RSP-0.5 — Residential Single Family Planned (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RSP-0.5 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RSP-0.5, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RSP-0.5, a single-family residential zone. The lot is 88,688 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 06041C0454E, effective March 17, 2014
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $2,202,000 – $2,802,000 · Status: Off market
HUD Small Area FMR (ZIP 94904) · FY 2026
Studio $2,260 · 1BR $2,710 · 2BR $3,280 · 3BR $4,190 · 4BR $4,340
Developments Deserving Closer Investigation & Active Area Builders
- Accessory dwelling unit at 432 Woodland Rd (Applied)0.49 mi SE
In "Applied" for 2.6 yr (since Apr 12, 2024), 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, $1,250,000 declared valuation across 1 permit).
- Solar / battery storage (165143) (Issued)On this parcel
Issued after 2 mo — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
- New home at 15 Spring Rd (Issued)0.24 mi E
Active in "Issued" for 11.4 yr (first record Jun 24, 2015) with no new permit activity recorded in 11.1 yr. High-impact scale (1 housing unit, $2,745,000 declared valuation across 1 permit).
- Rafenelli- Goodenoff (Issued)0.49 mi NE
Active in "Issued" for 9.3 yr (first record Jul 13, 2017) with no new permit activity recorded in 9.3 yr. High-impact scale (1 housing unit, 1 deed-restricted affordable across 0 permits).
Entity-resolved builders & contractors in ½ mile: Tesla Energy (2 on parcel, 2 in ½ mi · Electrical / panel); Sunpower (1 on parcel, 1 in ½ mi · Solar / battery storage); Scott And Warner Bldrs (1 on parcel, 1 in ½ mi · Windows / doors / siding); Sun First (1 on parcel, 1 in ½ mi · Solar / battery storage); All Seasons Roofing And Waterproofing (1 on parcel, 1 in ½ mi · Roof replacement).
Permit & Project History on This Parcel (6 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 165143 | Solar / battery storage | Issued | Iss. Jul 17, 2020 | $27,706 | 6.660kw Photovoltaic. Express |
| 161420 | Electrical / panel | Issued | Iss. May 2, 2019 | $200 | 400 A Disconnect & 150 A Load Center |
| 161419 | Solar / battery storage | Issued | Iss. May 2, 2019 | $70,000 | Battery Back Up |
| B10854 | Roof replacement | Issued | Iss. Aug 22, 2016 | $9,245 | REROOF — ReRoofing |
| 152930 | Solar / battery storage | Issued | Iss. Aug 10, 2016 | $72,000 | P V Sys 24.84 K W - Express |