501 Laverne Ave
Mill Valley 94941 · Homestead · Unincorporated Marin · Coordinates: 37.89780, -122.55146
Parcel & Assessor
- Lot size:
- 8,146 sq ft (0.19 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 501 LAVERNE AVE; 503 LAVERNE AVE
Zoning & Land Use
R1 — Residential Single Family (Unincorporated Marin)
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.
- SB 9: two homes on the lotLikely eligible
Zoned R1, a single-family residential zone.
- SB 9: split into two lotsLikely eligible
Zoned R1, a single-family residential zone. The lot is 8,146 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: $1,932,000 – $2,460,000 · 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 503 Laverne Ave And (Issued)On this parcel
Active in "Issued" for 5.9 yr (first record Nov 18, 2020) with no new permit activity recorded in 4.6 yr.
- New home at 420 Laverne Ave (Issued)0.1 mi E
Active in "Issued" for 8.5 yr (first record Apr 23, 2018) with no new permit activity recorded in 3.7 yr. High-impact scale (1 housing unit, $1,100,000 declared valuation across 1 permit).
- Accessory dwelling unit at 408 Laverne Ave (adu 408a) (Issued)0.13 mi E
Active in "Issued" for 2.3 yr (first record Jul 12, 2024) with no new permit activity recorded in 14 mo. High-impact scale (1 housing unit, $2,700,000 declared valuation across 1 permit).
- New home at 409 Montford Ave (Issued)0.15 mi E
Active in "Issued" for 12.4 yr (first record Jun 17, 2014) with no new permit activity recorded in 12.1 yr. High-impact scale (1 housing unit, $1,100,000 declared valuation across 2 permits).
Permit & Project History on This Parcel (4 permits, 1 grouped projects)
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B40806 | Solar / battery storage | Issued | Iss. Jan 15, 2025 | $39,698 | Solar and Battery |
| B33107 | HVAC / heat pump | Issued | Iss. Apr 20, 2023 | $27,883 | Replace existing gas Hvac system with new furnace and AC with new r6 insulated ductwork. — Replace Ductwork, Replace Mec… |
| 170892 | New single-family home | Issued | Iss. Mar 16, 2022 | $725,000 | Repl S F D; Att Gar & A D U - B W O P |
| B14803 | Plumbing / water heater / sewer | Issued | Iss. Apr 24, 2018 | $2,500 | Gas house line plumbing. Approx 40' — New Gas Service |