422 A Corte Escuela
Novato 94949 · Loma Verde · Unincorporated Marin · Coordinates: 38.06396, -122.54826
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 $1,537,000 ($1,353,000–$1,721,000).
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 26,659 sq ft lot. Local precedent is active with 3 ADU permits within ¼ mile over the last 36 months.
Source: Unincorporated Marin zoning · CA Gov. Code 66314 & 65852.21
- ✓ Documented permitted upgrades (+$186,174 contributory est.)
Public building records show issued construction/renovation work on this parcel (4 total permits, latest Oct 31, 2025).
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 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
Accessory dwelling unit at 422 Corte Escuela (a D U 422 A): Active in "Issued" for 3.9 yr (first record Dec 28, 2022) with no new permit activity recorded in 12 mo.
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: Accessory dwelling unit at 424 Corte Escuela (180 ft 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:
- 26,659 sq ft (0.61 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 422A CORTE ESCUELA; 422 CORTE ESCUELA
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 26,659 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 (all 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: $1,353,000 – $1,721,000 · 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
- Accessory dwelling unit at 422 Corte Escuela (a D U 422 A) (Issued)On this parcel
Active in "Issued" for 3.9 yr (first record Dec 28, 2022) with no new permit activity recorded in 12 mo.
- Accessory dwelling unit (new or conversion) (180404) (Issued)On this parcel
Issued after 2.8 yr (5.1× the 204d median) — slower than 90% of accessory dwelling unit (new or conversion) permits in Unincorporated Marin (median 204d, 90th pct 549d, n=298).
- Accessory dwelling unit at 424 Corte Escuela (Applied)180 ft 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 477 Alameda De La Loma (aka 477a) (Issued)0.2 mi NW
Active in "Issued" for 2.5 yr (first record May 6, 2024) with no new permit activity recorded in 2 yr.
Entity-resolved builders & contractors in ½ mile: Larke Construction (1 on parcel, 1 in ½ mi · Roof replacement); Sunrun Installation Service (1 on parcel, 1 in ½ mi · Solar / battery storage); Bob Ellison Woodworking (1 on parcel, 1 in ½ mi · Accessory dwelling unit (new or conversion)); Owner Builder (17 in ½ mi · Remodel / interior alteration); Owner (9 in ½ mi · Remodel / interior alteration).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| 180404 | Accessory dwelling unit (new or conversion) | Issued | Iss. Oct 31, 2025 | $10,000 | New A D U At [E] 1st Floor; Deck - B W O P |
| B35555 | Roof replacement | Issued | Iss. Sep 28, 2023 | $20,600 | Remove and dispose of existing roofing and re-roof with composition roofing and 1 square of modified bitumen. Class A, 2… |
| 147089 | Electrical / panel | Issued | Iss. May 13, 2015 | $1,000 | Upgr Main Panel To 125 A |
| 147087 | Solar / battery storage | Issued | Iss. May 13, 2015 | $13,600 |