Marin County property record for 151 Monte Vista Ave, Mill Valley, CA 94941
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 3 ba · 1,850 sqft · built 1908 |
| Lot Size | 0.387 acres (16,839 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $212,000 (Jan 1997) |
| Tax Bill | $7,060 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 027-236-21 |
| Primary APN | 027-236-21 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Units | 2 Units |
| Building Area | 1,850 sqft Living Area |
| Basement Area | 348 sqft |
| Year Built | Built 1908 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Contemporary |
| Lot Area | 16,839 sqft (0.387 acres) |
| Garage Area | 112 sqft |
| Pool Area | 224 sqft |
| Deck Area | 48 sqft |
| Patio Area | 438 sqft |
| Heating System | Central |
|---|
| Street Address | 151 MONTE VISTA AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-5057 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT 104 |
| Legal Subdivision | MILL VLY HEIGHTS |
| Legal Lot Number | 104 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 127000 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Listed Area | Within Dipsea Trail, The listed 2010 · 1 contributing resources · NRIS 10000356 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
151 Monte Vista Ave, a duplex, is owned and occupied by two individuals who acquired it in February 1997.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 151 MONTE VISTA AVE, MILL VALLEY, CA 94941-5057 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 14, 1997 · Amount on File |
| Deed Sale | Jan 14, 1997 · Amount on File |
| Deed Document Number | 19972054 |
| Last Transfer Date | Feb 3, 1997 |
| Transfer Doc | 0000006656 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 151 Monte Vista Ave was $7,060 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Mill Valley City |
| Elementary School District | Mill Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $395,216 (+2%) Land $268,608 Building $126,608 | |
| 2025 | $7,060.00 Homeowner's exemption | $387,467 Land $263,341 Building $124,126 |
| 2023 | $7,884.00 (+3.1%) Homeowner's exemption | $372,423 Land $253,117 Building $119,306 |
| 2022 | $7,647.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 151 Monte Vista Ave in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1982.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 4 (1982–1998) |
| Claims Outside the SFHA | 3 of 4 |
| Most Recent Claim | Jan 1998 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 151 Monte Vista Ave is moderate, ranking above 48% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 48% of the US · lower than 71% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people · EPA ID CA2110002 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | Under 1 ppb (2019–2021) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 340 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Unwired, Verizon.
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