250 Corte Del Cerro
Novato 94949 · Loma Verde · Unincorporated Marin · Coordinates: 38.06248, -122.54506
Executive Verdict · Public-Records Synthesis
Zoned R1-B2 in Unincorporated Marin with likely ADU & SB 9 infill eligibility and mapped CAL FIRE high fire hazard severity zone (local responsibility area) due diligence; benchmark value $1,348,000 ($1,186,000–$1,510,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned R1-B2 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 24,263 sq ft lot. Local precedent is active with 2 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ 8 documented municipal building permits on file
On-parcel permit history is indexed through May 18, 2026, 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)
Watchouts & Due Diligence
- ! Mapped flood awareness zone (Zone X: minimal flood hazard)
about 50% 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) (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 Mar 24, 2025)
- ! Delayed or open permit activity on this parcel
New garage / accessory structure (89387): Pending in review for 4.8 yr (10.8× the 164d median) — slower than 90% of new garage / accessory structure permits in Unincorporated Marin (median 164d, 90th pct 485d, n=356).
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 424 Corte Escuela (0.23 mi NW, applied). 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:
- 24,263 sq ft (0.56 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 250 CORTE DEL CERRO
Zoning & Land Use
R1-B2 — Residential Single Family (Unincorporated Marin)
Undesignated — Undesignated (Novato)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-B2 (single-family residential): state law allows ADUs where homes are allowed. The parcel point also falls in Undesignated.
- SB 9: two homes on the lotLikely eligible
Zoned R1-B2, a single-family residential zone. The parcel point also falls in Undesignated.
- SB 9: split into two lotsLikely eligible
Zoned R1-B2, a single-family residential zone. The parcel point also falls in Undesignated. The lot is 24,263 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
- High Fire Hazard Severity Zone (Local Responsibility Area) (all of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (about 50% of the lot); Zone X: minimal flood hazard (about 50% of the lot) · FIRM panel 06041C0283E, 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: $1,186,000 – $1,510,000 · Status: Off market
HUD Small Area FMR (ZIP 94949) · FY 2026
Studio $2,360 · 1BR $2,830 · 2BR $3,430 · 3BR $4,380 · 4BR $4,540
Developments Deserving Closer Investigation & Active Area Builders
- New garage / accessory structure (89387) (Applied)On this parcel
Pending in review for 4.8 yr (10.8× the 164d median) — slower than 90% of new garage / accessory structure permits in Unincorporated Marin (median 164d, 90th pct 485d, n=356).
- New garage / accessory structure (89386) (Applied)On this parcel
Pending in review for 4.8 yr (10.8× the 164d median) — slower than 90% of new garage / accessory structure permits in Unincorporated Marin (median 164d, 90th pct 485d, n=356).
- Accessory dwelling unit at 424 Corte Escuela (Applied)0.23 mi NW
In "Applied" for 2.8 yr (since Jan 17, 2024), exceeding the 253d median and 686d 90th percentile for new single-family home permits in Unincorporated Marin (n=121).
- Accessory dwelling unit at 483 Alameda Del Prado (Applied)0.35 mi E
In "Applied" for 2 yr (since Oct 25, 2024), 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: Gelardi Construction (3 on parcel, 3 in ½ mi · Other); Capstone Roofing (1 on parcel, 1 in ½ mi · Roof replacement); Ernest Ongaro And Sons (1 on parcel, 1 in ½ mi · Electrical / panel); William Gotelli Plumbing (1 on parcel, 1 in ½ mi · Plumbing / water heater / sewer); Owner Builder (16 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (8 permits, 0 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B46840 | Windows / doors / siding | Issued | Iss. May 18, 2026 | $25,000 | Siding Replacement, Stucco Replacement, Non-structural Door/Window Replacement |
| B46522 | Other | Issued | Iss. Apr 16, 2026 | $70,000 | — |
| B45717 | Roof replacement | Issued | Iss. Feb 3, 2026 | $24,200 | ReRoofing |
| B44443 | Plumbing / water heater / sewer | Issued | Iss. Oct 20, 2025 | $30,000 | Demo bathroom... install new plumbing, new tub, toilet, tile, and vanity. Insulation were needed, drywall tape texture a… |
| B31153 | Electrical / panel | Issued | Iss. Sep 22, 2022 |