403 Cascade Dr
Fairfax 94930 · Fairfax · Coordinates: 37.97519, -122.60367
Executive Verdict · Public-Records Synthesis
Zoned RS-6 in Fairfax with likely ADU & SB 9 infill eligibility and mapped CAL FIRE moderate fire hazard severity zone (local responsibility area) due diligence; benchmark value $1,256,000 ($1,068,000–$1,444,000).
Upsides & Opportunities
- ✓ ADU & SB 9 infill pathways screen as likely eligible
Zoned RS-6 supports ministerial ADU/JADU review plus SB 9 both two-unit development and ministerial urban lot split on a 7,536 sq ft lot.
Source: Fairfax zoning · CA Gov. Code 66314 & 65852.21
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 Moderate 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 home: Active in "Issued" for 5.6 yr (first record Apr 19, 2021) with no new permit activity recorded in 5.6 yr.
Source: County of Marin Community Development Agency, Building Permits (unincorporated Marin) (review-time benchmark)
- ! 5 slow or stalled nearby projects within ½ mile
Closest lead: New home (0.11 mi NE, 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)
Parcel & Assessor
- Lot size:
- 7,536 sq ft (0.17 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 403 CASCADE DR
Zoning & Land Use
RS-6 (Fairfax)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RS-6 (single-family residential): state law allows ADUs where homes are allowed. We read RS-6 from the zoning code's name; we haven't checked it against Fairfax's code text.
- SB 9: two homes on the lotLikely eligible
Zoned RS-6, a single-family residential zone. We read RS-6 from the zoning code's name; we haven't checked it against Fairfax's code text.
- SB 9: split into two lotsLikely eligible
Zoned RS-6, a single-family residential zone. We read RS-6 from the zoning code's name; we haven't checked it against Fairfax's code text. The lot is 7,536 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
- Moderate 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 06041C0451E, effective March 17, 2014
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $1,068,000 – $1,444,000 · Status: Off market
HUD Small Area FMR (ZIP 94930) · FY 2026
Studio $2,230 · 1BR $2,680 · 2BR $3,240 · 3BR $4,140 · 4BR $4,290
Nearby Activity (½ mile radius, since November 2024)
3 active or recent development projects (3 housing units across completed, permitted, and pipeline stages) and 13 total building permits recorded within ½ mile.
- Additions & renovations1 permit
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 5.6 yr (first record Apr 19, 2021) with no new permit activity recorded in 5.6 yr.
- New home (Issued)0.11 mi NE
Active in "Issued" for 20 mo (first record Mar 3, 2025) with no new permit activity recorded in 20 mo.
- New home (Issued)0.12 mi NE
Active in "Issued" for 8.6 yr (first record Apr 20, 2018) with no new permit activity recorded in 8.6 yr.
- New home (Issued)0.16 mi E
Active in "Issued" for 22 mo (first record Jan 10, 2025) with no new permit activity recorded in 22 mo.
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: 1 entry (report years 2022).