746 Alta Vista Rd
Mill Valley 94941 · Tamalpais · Unincorporated Marin · Coordinates: 37.87637, -122.54209
Parcel & Assessor
- Lot size:
- 10,716 sq ft (0.25 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 746 ALTA VISTA RD
Zoning & Land Use
R1-B1 — Residential Single Family (Unincorporated Marin)
State Housing Pathways Screen (ADU & SB 9)
- ADU or junior ADULikely eligible
Zoned R1-B1 (single-family residential): state law allows ADUs where homes are allowed.
- SB 9: two homes on the lotLikely eligible
Zoned R1-B1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1-B1, a single-family residential zone. The lot is 10,716 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 (State Responsibility Area) (all of the lot, map Apr 1, 2024)
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0468F, 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: $1,949,000 – $2,481,000 · 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
Developments Deserving Closer Investigation & Active Area Builders
- New home at 746 Alta Vista Rd (Issued)On this parcel
Active in "Issued" for 3.3 yr (first record Jul 19, 2023) with no new permit activity recorded in 2.2 yr. High-impact scale (1 housing unit, $1,183,700 declared valuation across 2 permits).
- New home at 760 Bay Rd (Issued)360 ft NE
Active in "Issued" for 9.4 yr (first record Jun 12, 2017) with no new permit activity recorded in 8.4 yr. High-impact scale (1 housing unit, $750,000 declared valuation across 1 permit).
- New home at 808 Spring Dr (Issued)380 ft SW
Active in "Issued" for 4.9 yr (first record Dec 13, 2021) with no new permit activity recorded in 4.7 yr. High-impact scale (1 housing unit, $850,000 declared valuation across 1 permit).
- New home at 812 Spring Dr (Issued)420 ft W
Active in "Issued" for 4.1 yr (first record Sep 19, 2022) with no new permit activity recorded in 3.2 yr. High-impact scale (1 housing unit, $1,006,000 declared valuation across 1 permit).
Permit & Project History on This Parcel (9 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B42024 | Solar / battery storage | Issued | Iss. Apr 14, 2025 | $80,759 | New Rooftop flush mounted PV system with new battery storage, grid tied microinverters, to an existing main service pane… |
| 178378 | Pool / spa | Issued | Iss. Jan 2, 2025 | $69,595 | Build New In-Ground Spa |
| 177323 | General repair | Issued | Iss. Aug 9, 2024 | $16,800 | W Terrace Retaining Wall |
| 177322 | General repair | Issued | Iss. Aug 9, 2024 | $7,500 | North Retaining Wall |