15 Red Rock Way
San Rafael 94903 · Los Ranchitos · Unincorporated Marin · Coordinates: 37.98916, -122.53222
Executive Verdict · Public-Records Synthesis
Zoned A2-B4 in Unincorporated Marin and zero mapped flood, fire, or fault hazard overlaps; benchmark value $1,566,000 ($1,378,000–$1,754,000).
Upsides & Opportunities
- ✓ 3 documented municipal building permits on file
On-parcel permit history is indexed through Feb 9, 2023, letting you verify roof, HVAC, electrical, or structural work against seller disclosures.
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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 32 Ranch Rd (0.35 mi W, 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)
- ! Year 1 Prop 13 tax reset (~$18,459/yr at $1,566,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,538/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:
- 35,632 sq ft (0.82 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 15 RED ROCK WAY
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
- Not in a State-mapped fire hazard severity zone
- 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: $1,378,000 – $1,754,000 · 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
- New home at 32 Ranch Rd (Issued)0.35 mi W
Active in "Issued" for 10.4 yr (first record Jun 27, 2016) with no new permit activity recorded in 10 yr. High-impact scale (1 housing unit, $903,650 declared valuation across 1 permit).
- New home (Entitled)0.18 mi SE
In "Entitled" for 5.7 yr (since Mar 10, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Entitled)0.18 mi SE
In "Entitled" for 8.4 yr (since Jun 20, 2018), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 200 Valley View Ave (Applied)0.34 mi W
In "Applied" for 4 yr (since Nov 16, 2022), 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 (1 on parcel, 3 in ½ mi · Demolition); Bellows Plumbing Heating And Air (1 on parcel, 1 in ½ mi · HVAC / heat pump); Lassiter Excavating (1 on parcel, 1 in ½ mi · Demolition); Owner Builder (12 in ½ mi · New garage / accessory structure); New Dimension (4 in ½ mi · New garage / accessory structure).
Permit & Project History on This Parcel (3 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B32538 | HVAC / heat pump | Issued | Iss. Feb 9, 2023 | $15,000 | Replace existing FAU in crawlspace with 96% FAU, same location. Replace existing AC in front yard with new AC, same loca… |
| 148384 | Demolition | Issued | Iss. Aug 12, 2015 | $7,800 | Demolition Of Swimming Pool |
| 142054 | HVAC / heat pump | Issued | Iss. Mar 31, 2014 | $8,100 | Replace Wood Burning Fireplaces W/Gas Inserts (2) |