825 Diablo Ave
Novato 94947 · Novato · Coordinates: 38.10190, -122.57459
Executive Verdict · Public-Records Synthesis
Zoned R10-4.5 in Novato with likely ministerial ADU eligibility and mapped FEMA AE flood due diligence; benchmark value $1,102,000 ($937,000–$1,267,000).
Upsides & Opportunities
- ✓ Ministerial ADU / JADU pathway likely eligible
Zone R10-4.5 allows residential use qualifying for ministerial ADU review under state law.
Source: Novato zoning · CA Gov. Code 66314
Watchouts & Due Diligence
- ! FEMA Special Flood Hazard Area (AE, about 37% 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)
- ! 6 slow or stalled nearby projects within ½ mile
Closest lead: 7299 Redwood Blvd Apartments (0.28 mi NE, entitled). Inspect timeline history before assuming near-term completion.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) · HCD APR (½-mile radius)
- ! Bulk building permits not published for Novato
Permit counts and nearby activity on this page may omit municipal counter records. Request a parcel permit report directly from the local building department.
Source: Source coverage registry (Novato)
- ! Year 1 Prop 13 tax reset (~$13,123/yr at $1,102,000)
Sale triggers reassessment to 1.00% base + ~0.15% voter debt (~$1,094/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:
- 18,121 sq ft (0.42 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 825 DIABLO AVE
Zoning & Land Use
R10-4.5 — Medium Density Multiple Family Residenial (Novato)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R10-4.5 (multifamily residential): state law allows ADUs where homes are allowed. On a multifamily lot the state allowance is different: ADUs in non-living space of the building, plus up to eight detached ADUs.
- SB 9: two homes on the lotUnlikely
Zoned R10-4.5 (multifamily residential), not a single-family residential zone.
- SB 9: split into two lotsUnlikely
Zoned R10-4.5 (multifamily residential), not a single-family residential zone.
Mapped Hazard Zones on This Lot
- CAL FIRE Fire Hazard Severity Zone
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone AE: 1% annual chance flood (Special Flood Hazard Area) (about 37% of the lot); Zone AO: 1% annual chance flood (Special Flood Hazard Area) (about 63% of the lot) · FIRM panel 06041C0277E, 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: $937,000 – $1,267,000 · Status: Off market
HUD Small Area FMR (ZIP 94947) · FY 2026
Studio $2,250 · 1BR $2,690 · 2BR $3,260 · 3BR $4,160 · 4BR $4,320
Nearby Activity (½ mile radius, since November 2024)
6 active or recent development projects (86 housing units across completed, permitted, and pipeline stages) and 4 total building permits recorded within ½ mile.
- New construction2 permits (1 units)
Developments Deserving Closer Investigation & Active Area Builders
- 7299 Redwood Blvd Apartments (Entitled)0.28 mi NE
Active in "Entitled" for 14 mo (first record Sep 22, 2025) with no new permit activity recorded in 14 mo. High-impact scale (82 housing units, 81 deed-restricted affordable across 0 permits).
- First and Grant Mixed Use (Entitled)0.44 mi N
Active in "Entitled" for 8 yr (first record Nov 5, 2018) with no new permit activity recorded in 8 yr. High-impact scale (32 housing units, 6 deed-restricted affordable across 0 permits).
- 4 new homes (Issued)280 ft NE
Active in "Issued" for 7.8 yr (first record Jan 31, 2019) with no new permit activity recorded in 7.8 yr. High-impact scale (4 housing units across 0 permits).
- New home (Issued)400 ft N
Active in "Issued" for 3.8 yr (first record Feb 2, 2023) with no new permit activity recorded in 3.8 yr.
Permit & Project History on This Parcel (0 permits, 1 grouped projects)
No building permits recorded on this parcel in our dataset.
State HCD Housing Element APR records on this parcel: 3 entries (report years 2023, 2024, 2025).