145 Atherton Oaks Dr
Novato 94945 · Green Point · Unincorporated Marin · Coordinates: 38.10782, -122.52745
Executive Verdict · Public-Records Synthesis
Zoned ARP-2 in Unincorporated Marin and mapped FEMA AE flood / CAL FIRE moderate fire hazard severity zone (state responsibility area) due diligence; benchmark value $1,390,000 ($1,223,000–$1,557,000).
Upsides & Opportunities
- ✓ Documented permitted upgrades (+$52,920 contributory est.)
Public building records show issued construction/renovation work on this parcel (6 total permits, latest Jun 3, 2025).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (parcel APN)
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (AE, about 1% of the lot of lot)
Zone AE: 1% annual chance flood (Special Flood Hazard Area) overlaps this parcel. Expect mandatory flood insurance for federally backed loans and floodplain elevation/mitigation rules for new units or SB 9 applications.
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)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: New home at 50 Lockton Ln (0.5 mi E, 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 (~$16,435/yr at $1,390,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,370/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:
- 29,839 sq ft (0.69 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 145 ATHERTON OAKS DR
Zoning & Land Use
ARP-2 — Agriculture Residential Planned (Unincorporated Marin)
Undesignated — Undesignated (Novato)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADUCan't tell
Zoned ARP-2 (agricultural): ADUs are allowed if the zone allows a home, which depends on the zone's rules. The parcel point also falls in Undesignated.
- SB 9: two homes on the lotUnlikely
Zoned ARP-2 (agricultural), not a single-family residential zone. The parcel point also falls in Undesignated.
- SB 9: split into two lotsUnlikely
Zoned ARP-2 (agricultural), not a single-family residential zone. The parcel point also falls in Undesignated.
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 AE: 1% annual chance flood (Special Flood Hazard Area) (about 1% of the lot); Zone X: minimal flood hazard (about 99% of the lot) · FIRM panel 06041C0282E, 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: $1,223,000 – $1,557,000 · Status: Off market
HUD Small Area FMR (ZIP 94945) · FY 2026
Studio $2,050 · 1BR $2,510 · 2BR $2,990 · 3BR $3,770 · 4BR $3,960
Developments Deserving Closer Investigation & Active Area Builders
- New home at 50 Lockton Ln (Issued)0.5 mi E
Active in "Issued" for 8.7 yr (first record Feb 21, 2018) with no new permit activity recorded in 8.5 yr. High-impact scale (1 housing unit, $1,090,000 declared valuation across 1 permit).
- Mixed-use development at 435 School Rd (Applied)0.21 mi N
In "Applied" for 5.6 yr (since Mar 26, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 10 Atherton Oaks Dr (Applied)0.25 mi E
In "Applied" for 5.8 yr (since Feb 10, 2021), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- New commercial building at 450 Atherton Ave (Applied)0.38 mi NW
Active in "Applied" for 7.3 yr (first record Jul 10, 2019) with no new permit activity recorded in 6.9 yr.
Entity-resolved builders & contractors in ½ mile: Owner Builder (1 on parcel, 6 in ½ mi · Pool / spa); Owner (1 on parcel, 5 in ½ mi · New garage / accessory structure); Sunrun Installation Service (2 on parcel, 2 in ½ mi · Solar / battery storage); Tropicana Pools Of California (1 on parcel, 1 in ½ mi · Pool / spa); Peter Levi Plumbing (1 on parcel, 1 in ½ mi · HVAC / heat pump).
Permit & Project History on This Parcel (6 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B42623 | HVAC / heat pump | Issued | Iss. Jun 3, 2025 | $29,000 | Remove furnace & AC and install Air handler & Heat Pump — Replace Mechanical Appliance |
| 177049 | Pool / spa | Issued | Iss. Jul 16, 2024 | $90,000 | Inground Gunite Pool W/ Auto Cover |
| 163310 | New garage / accessory structure | Issued | Iss. Nov 21, 2019 | $125,000 | New Trellis, Add Outside Kitchen, New Fire Pit T.D. 7/9/19 |
| 162474 | Solar / battery storage | Issued | Iss. Aug 28, 2019 | $7,000 | Battery Backup - Express |