515 Oak Manor Dr
Fairfax 94930 · Unincorporated Fairfax · Unincorporated Marin · Coordinates: 38.00468, -122.59583
Executive Verdict · Public-Records Synthesis
Zoned R1 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 $1,296,000 ($1,140,000–$1,452,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 7,971 sq ft lot.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$12,960 contributory est.)
Public building records show issued construction/renovation work on this parcel (4 total permits, latest Dec 4, 2024).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
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 (87652): Pending in review for 5.7 yr — 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)
- ! 3 slow or stalled nearby projects within ½ mile
Closest lead: 54 new homes (0.46 mi SW, 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:
- 7,971 sq ft (0.18 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 515 OAK MANOR DR
Zoning & Land Use
R1 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1, a single-family residential zone. The lot is 7,971 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 06041C0288D, 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: $1,140,000 – $1,452,000 · Status: Off market
HUD Small Area FMR (ZIP 94930) · FY 2026
Studio $2,230 · 1BR $2,680 · 2BR $3,240 · 3BR $4,140 · 4BR $4,290
Developments Deserving Closer Investigation & Active Area Builders
- 54 new homes (Issued)0.46 mi SW
Active in "Issued" for 8 yr (first record Nov 26, 2018) with no new permit activity recorded in 8 yr. High-impact scale (54 housing units, 54 deed-restricted affordable across 0 permits).
- Solar / battery storage (87652) (Applied)On this parcel
Pending in review for 5.7 yr — slower than 90% of solar / battery storage permits in Unincorporated Marin (median 0d, 90th pct 2d, n=2,977).
- New home (Entitled)0.27 mi NE
In "Entitled" for 5.3 yr (since Jul 9, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New home (Issued)0.18 mi N
Active in "Issued" for 5.8 yr (first record Jan 29, 2021) with no new permit activity recorded in 5.8 yr.
Entity-resolved builders & contractors in ½ mile: Sunrun Installation Service (2 on parcel, 2 in ½ mi · Solar / battery storage); C Wells Electrical (1 on parcel, 1 in ½ mi · EV charger); Sunrun Installation Services (1 on parcel, 1 in ½ mi · Electrical / panel); Owner Builder (9 in ½ mi · Addition (adds square footage)); Owner (8 in ½ mi · New garage / accessory structure).
Permit & Project History on This Parcel (4 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B40406 | EV charger | Issued | Iss. Dec 4, 2024 | $3,600 | Install new 60A circuit for Level 2 Ford EV charger at 48A rate with DCC-12 load management device<div><br></div><div>**… |
| B32004 | Electrical / panel | Issued | Iss. Dec 9, 2022 | $2,000 | Conduit run changed per PG&E requirements. — Replace Circuits / Outlets |
| 167503 | Solar / battery storage | Issued | Iss. Mar 23, 2021 | $36,000 | 7.24kw Rooftop Photovoltaic System And Energy Storage System. |
| 87652 | Solar / battery storage | Applied | App. Mar 1, 2021 | $36,000 | 5.7kw Rooftop Photovoltaic & Energy Storage System |