Parcel Context · Public-Records Property BriefAPN 050-191-19
351 Dolan Ave
Mill Valley 94941 · Tamalpais · Unincorporated Marin · Coordinates: 37.88068, -122.53028
Parcel & Assessor
- Lot size:
- 5,445 sq ft (0.13 ac)
- Assessor use:
- Single-Resid. - Improved
- Addresses on lot:
- 351 DOLAN AVE
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 5,445 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
- Not in a State-mapped fire hazard severity zone
- FEMA National Flood Hazard Layer
- Zone X: minimal flood hazard (all of the lot) · FIRM panel 06041C0469F, effective March 16, 2016
- CGS Alquist-Priolo Earthquake Fault Zone
- Not in an Alquist-Priolo Earthquake Fault Zone
Surrounding Rent & Value Benchmarks (Public Records)
HUD Small Area FMR (ZIP 94941) · FY 2026
Studio $2,730 · 1BR $3,270 · 2BR $3,960 · 3BR $5,060 · 4BR $5,240
ACS 2020–2024 Median Gross Rent (Tamalpais):$2,994±$755 Source: ACS 2020–2024 5-year estimates. Geography: Tamalpais.
ACS 2020–2024 Median Gross Rent (ZIP 94941):$3,100±$331 Source: ACS 2020–2024 5-year estimates. Geography: Mill Valley.
Zillow Home Value Index (ZIP 94941, September 2026):$2,181,389
ACS 2020–2024 Median Home Value (Tamalpais):$1,805,000±$71,000 Source: ACS 2020–2024 5-year estimates. Geography: Tamalpais.
ACS 2020–2024 Median Home Value (ZIP 94941):$2,000,000+ Source: ACS 2020–2024 5-year estimates. Geography: Mill Valley.
Nearby Activity (½ mile radius, since October 2024)
22 active or recent development projects (21 housing units across completed, permitted, and pipeline stages) and 617 total building permits recorded within ½ mile.
- New construction18 permits (3 units)
- Adds housing (ADU)17 permits (17 units)
- Demolition1 permit
- Additions & renovations40 permits
- Building systems443 permits
- Repairs28 permits
- Other70 permits
Permit & Project History on This Parcel (2 permits, 1 grouped projects)
Accessory dwelling unit at 351 Dolan AveStage: Applied · 1 units · $149,000 declared valuation · Last record Jul 1, 2026
| Record # | Category | Status | Applied / Issued | Valuation | Description |
|---|---|---|---|---|---|
| B48306 | Plumbing / water heater / sewer | Issued | Iss. Sep 14, 2026 | $2,316 | Replace Plumbing Fixtures(s) |
| 94340 | Accessory dwelling unit (new or conversion) | Applied | App. Jul 1, 2026 | $149,000 | New Detached A D U Located At Rear |