90 Oak Ridge Rd
San Rafael 94903 · Los Ranchitos · Unincorporated Marin · Coordinates: 37.99218, -122.54756
Executive Verdict · Public-Records Synthesis
Zoned A2-B4 in Unincorporated Marin and mapped CAL FIRE high fire hazard severity zone (local responsibility area) due diligence; benchmark value $1,723,000 ($1,516,000–$1,930,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$157,520 contributory est.)
Public building records show issued construction/renovation work on this parcel (10 total permits, latest Aug 17, 2026).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
- ✓ Above-average reinvestment in Los Ranchitos
8 substantial renovation & housing permits over 24 months (45.7 per 1,000 parcels vs. 16.4 citywide baseline) (#17 of 22 neighborhoods).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (Los Ranchitos)
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 High Fire Hazard Severity Zone (Local 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 Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
Other (175357): Issued after 3 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: New home at 160 Cir Rd (0.38 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)
Parcel & Assessor
- Lot size:
- 47,132 sq ft (1.08 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 90 OAK RIDGE RD
Zoning & Land Use
A2-B4 — Agriculture Limited (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned A2-B4 (agricultural): ADUs are allowed if the zone allows a home, which depends on the zone's rules.
- SB 9: two homes on the lotUnlikely
Zoned A2-B4 (agricultural), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned A2-B4 (agricultural), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (Local Responsibility Area) (all of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0456F, 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: $1,516,000 – $1,930,000 · Status: Off market
HUD Small Area FMR (ZIP 94903) · FY 2026
Studio $2,880 · 1BR $3,450 · 2BR $4,180 · 3BR $5,340 · 4BR $5,530
Developments Deserving Closer Investigation & Active Area Builders
- Other (175357) (Issued)On this parcel
Issued after 3 mo — slower than 90% of other permits in Unincorporated Marin (median 0d, 90th pct 71d, n=1,560).
- Other (173349) (Issued)On this parcel
Issued after 2 mo — above the 75th percentile for other permits in Unincorporated Marin (median 0d, 75th pct 1d, n=1,560).
- New home at 160 Cir Rd (Applied)0.38 mi E
In "Applied" for 4.7 yr (since Feb 28, 2022), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Entitled)0.41 mi NE
In "Entitled" for 7.6 yr (since Apr 24, 2019), 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: Owner Builder (1 on parcel, 13 in ½ mi · New garage / accessory structure); Hamta Partners (1 on parcel, 2 in ½ mi · Remodel / interior alteration); Pac Solar (2 on parcel, 2 in ½ mi · Solar / battery storage); Nc Roofing Solution (1 on parcel, 1 in ½ mi · Roof replacement); Renewal By Andersen (1 on parcel, 1 in ½ mi · Windows / doors / siding).
Permit & Project History on This Parcel (10 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B47936 | Roof replacement | Issued | Iss. Aug 17, 2026 | $45,000 | ReRoofing |
| 178317 | Remodel / interior alteration | Issued | Iss. Dec 13, 2024 | $400,000 | Remodel, Including Kitchen & Master Bathrm, Add Internal Stair To Basement; Wndws/Doors; Replace Siding W/ Stucco; Decks |
| B38500 | Solar / battery storage | Issued | Iss. Jun 25, 2024 | $8,500 | Addition of 2 Enphase Batteries to existing PV system. |
| 175357 | Other | Issued | Iss. Nov 1, 2023 | $2,000 | Legalize Deck At Front Of Property - B W O P |
| B33472 | Electrical / panel | Issued | Iss. Apr 19, 2023 |