15 Sunny Oaks Dr
San Rafael 94903 · Santa Venetia · Unincorporated Marin · Coordinates: 38.01001, -122.50769
Executive Verdict · Public-Records Synthesis
Zoned RE-B3 in Unincorporated Marin with likely ministerial ADU eligibility and mapped CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,316,000 ($1,158,000–$1,474,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone RE-B3 allows residential use qualifying for ministerial ADU review under state law (1 ADU permit permitted within ¼ mile in 36 months).
Source: Unincorporated Marin zoning · CA Gov. Code 66314
- ✓ Documented permitted upgrades (+$15,120 contributory est.)
Public building records show issued construction/renovation work on this parcel (4 total permits, latest Nov 17, 2022).
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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: New home at 35 Pt Gallinas Rd (0.32 mi N, 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 (~$15,584/yr at $1,316,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,299/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:
- 92,826 sq ft (2.13 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 15 SUNNY OAKS DR
Zoning & Land Use
RE-B3 — Residential Estate (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RE-B3 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotCan't tell
Zoned RE-B3 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
- SB 9: split into two lotsCan't tell
Zoned RE-B3 (single-family residential): we can't tell whether it counts as a single-family zone for SB 9. Residential agriculture, estate and restricted: large-lot residential; confirm SB 9 with the county.
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 06041C0294E, 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: $1,158,000 – $1,474,000 · 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 35 Pt Gallinas Rd (Issued)0.32 mi N
Active in "Issued" for 9.5 yr (first record May 24, 2017) with no new permit activity recorded in 9.3 yr. High-impact scale (1 housing unit, $2,367,450 declared valuation across 1 permit).
- Accessory dwelling unit at 27 Sunny Oaks Dr (aka 29) (Applied)290 ft W
In "Applied" for 3.5 yr (since May 2, 2023), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Demolition at 1145 Adrian Way (Applied)0.31 mi NW
In "Applied" for 4.9 yr (since Dec 2, 2021), exceeding the 55d median and 261d 90th percentile for demolition permits in Unincorporated Marin (n=130).
- Demolition at 650 N San Pedro Rd (Issued)0.15 mi NE
Active in "Issued" for 13.1 yr (first record Oct 22, 2013) with no new permit activity recorded in 12 yr.
Entity-resolved builders & contractors in ½ mile: Ambrose Construction (2 on parcel, 2 in ½ mi · Electrical / panel); Melek Enterprises (1 on parcel, 1 in ½ mi · Roof replacement); Hassler Heating And Airconditioning (1 on parcel, 1 in ½ mi · HVAC / heat pump); Owner Builder (14 in ½ mi · Remodel / interior alteration); Owner (5 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (4 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B31804 | HVAC / heat pump | Issued | Iss. Nov 17, 2022 | $10,000 | Install heat pump with dedicated electrical circuit. Install modular blower unit. — New Circuits / Outlets; Replace Mech… |
| B29916 | Electrical / panel | Issued | Iss. Jun 1, 2022 | $3,200 | main service panel 200A main 225A bus — Service Upgrade |
| B29606 | Solar / battery storage | Issued | Iss. May 4, 2022 | $52,748 | 10.080kW PV ROOF MOUNT ON RES (27XSPR-X22-360-E-AC), ESS (1XSV-BASE13-12-A) |
| B24591 | Roof replacement | Issued | Iss. Jan 11, 2021 | $25,428 | Remove and replace existing roof with Class A fire rated composition roof, 33sq SELF-CERT — ReRoofing |