610 Calle De La Mesa
Novato 94949 · Loma Verde · Unincorporated Marin · Coordinates: 38.06769, -122.55231
Executive Verdict · Public-Records Synthesis
Zoned R1 in Unincorporated Marin with likely ministerial ADU eligibility and mapped FEMA AE flood / CAL FIRE high fire hazard severity zone (local responsibility area) due diligence; benchmark value $1,254,000 ($1,104,000–$1,404,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone R1 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
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (AE, about 3% of the lot of lot)
Zone AE: regulatory floodway (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 High Fire Hazard Severity Zone (Local Responsibility Area) (about 7% 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)
- ! 4 slow or stalled nearby projects within ½ mile
Closest lead: Accessory dwelling unit at 424 Corte Escuela (0.31 mi SE, 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)
- ! Year 1 Prop 13 tax reset (~$14,871/yr at $1,254,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,239/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:
- 9,278 sq ft (0.21 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 610 CALLE DE LA MESA
Zoning & Land Use
R1 — Residential Single Family (Unincorporated Marin)
Undesignated — Undesignated (Novato)
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. The parcel point also falls in Undesignated.
- SB 9: two homes on the lotPossible, with conditions
Zoned R1, a single-family residential zone. The parcel point also falls in Undesignated. FEMA regulatory floodway covers about 3% of the lot: SB 9 requires a no-rise certification.
- SB 9: split into two lotsPossible, with conditions
Zoned R1, a single-family residential zone. The parcel point also falls in Undesignated. The lot is 9,278 sq ft by the assessor, room for two lots of at least 1,200 sq ft, each at least 40% of the original. FEMA regulatory floodway covers about 3% of the lot: SB 9 requires a no-rise certification.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- High Fire Hazard Severity Zone (Local Responsibility Area) (about 7% of the lot, map Mar 24, 2025); Moderate Fire Hazard Severity Zone (Local Responsibility Area) (about 93% of the lot, map Mar 24, 2025)
- FEMA National Flood Hazard Layer
- Zone AE: regulatory floodway (Special Flood Hazard Area) (about 3% of the lot); Zone X: minimal flood hazard (about 97% 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: $1,104,000 – $1,404,000 · 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 424 Corte Escuela (Applied)0.31 mi SE
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)0.15 mi SE
Active in "Issued" for 2.5 yr (first record May 6, 2024) with no new permit activity recorded in 2 yr.
- Accessory dwelling unit at 422 Corte Escuela (a D U 422 A) (Issued)0.34 mi SE
Active in "Issued" for 3.9 yr (first record Dec 28, 2022) with no new permit activity recorded in 12 mo.
- New home (Issued)0.44 mi SW
Active in "Issued" for 6.7 yr (first record Feb 28, 2020) with no new permit activity recorded in 6.7 yr.
Entity-resolved builders & contractors in ½ mile: Owner Builder (11 in ½ mi · Remodel / interior alteration); Owner (4 in ½ mi · Addition (adds square footage)); Smi Demolition (3 in ½ mi · Demolition); S And Z Construction (2 in ½ mi · Addition (adds square footage)); Juan Calmell (2 in ½ mi · Pool / spa).
Permit & Project History on This Parcel (0 permits, 0 grouped projects)
No building permits recorded on this parcel in our dataset.