1 Knoll Way
San Rafael 94903 · Los Ranchitos · Unincorporated Marin · Coordinates: 37.99308, -122.54280
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 $1,570,000 ($1,382,000–$1,758,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$4,840 contributory est.)
Public building records show issued construction/renovation work on this parcel (7 total permits, latest Oct 28, 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. 16.3 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) (about 82% 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
Remodel / interior alteration (173581): Issued after 5 mo (1.8× the 83d median) — above the 75th percentile for remodel / interior alteration permits in Unincorporated Marin (median 83d, 75th pct 148d, n=1,054).
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: New home at 32 Ranch Rd (0.3 mi 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:
- 44,431 sq ft (1.02 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 1 KNOLL 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
- High Fire Hazard Severity Zone (Local Responsibility Area) (about 82% of the lot, map Mar 24, 2025); Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 18% 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: $1,382,000 – $1,758,000 · 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)0.3 mi SE
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 at 160 Cir Rd (Applied)0.12 mi NE
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)0.25 mi N
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).
- Remodel / interior alteration (173581) (Issued)On this parcel
Issued after 5 mo (1.8× 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: Owner Builder (2 on parcel, 21 in ½ mi · New garage / accessory structure); Owner (1 on parcel, 6 in ½ mi · Demolition); Apollo Building And Roofing Group (1 on parcel, 1 in ½ mi · Roof replacement); Piscatelli (1 on parcel, 1 in ½ mi · Roof replacement); Smi Demolition (1 on parcel, 1 in ½ mi · Demolition).
Permit & Project History on This Parcel (7 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B48940 | Roof replacement | Issued | Iss. Oct 28, 2026 | $40,000 | ReRoofing |
| B34145 | Windows / doors / siding | Issued | Iss. Jun 13, 2023 | $1,000 | Remove existing siding, install new sheathing and cement siding. — Siding Replacement |
| 173581 | Remodel / interior alteration | Issued | Iss. Mar 15, 2023 | $10,000 | Interior Remodel, [N] Mini-Split, [N] Sub-Panel, Install W/D Hookups - B W O P T.D. 11-5-22 |
| 172535 | Electrical / panel | Issued | Iss. Oct 12, 2022 | $500 | Main Panel Upgrade On A D U |
| B30317 | Roof replacement | Issued | Iss. Jul 13, 2022 |