501 Cascade Dr
Mill Valley 94941 · Mill Valley · Coordinates: 37.91152, -122.56860
Parcel & Assessor
- Lot size:
- 66,211 sq ft (1.52 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 501 CASCADE DR; 501 CASCADE DR UNIT A
Zoning & Land Use
RS-43 — Single Fam Res (min 1 acre) (Mill Valley)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned RS-43 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned RS-43, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned RS-43, a single-family residential zone. The lot is 66,211 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 06041C0465E, effective August 15, 2017
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
Range: $2,066,000 – $2,795,000 · Status: Off market
HUD Small Area FMR (ZIP 94941) · FY 2026
Studio $2,730 · 1BR $3,270 · 2BR $3,960 · 3BR $5,060 · 4BR $5,240
Nearby Activity (½ mile radius, since October 2024)
3 active or recent development projects (3 housing units across completed, permitted, and pipeline stages) and 30 total building permits recorded within ½ mile.
Developments Deserving Closer Investigation & Active Area Builders
- New home (Issued)On this parcel
Active in "Issued" for 7.1 yr (first record Sep 30, 2019) with no new permit activity recorded in 7.1 yr.
- New home (Issued)0.14 mi NW
Active in "Issued" for 4.9 yr (first record Dec 2, 2021) with no new permit activity recorded in 4.9 yr.
- Junior ADU lower level existing space (Issued)0.3 mi NE
Active in "Issued" for 6.6 yr (first record Mar 9, 2020) with no new permit activity recorded in 6.2 yr.
- New home (Issued)0.32 mi NE
Active in "Issued" for 5.8 yr (first record Jan 25, 2021) with no new permit activity recorded in 5.8 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: 2 entries (report years 2019).