Marin County property record for 21 Locust Ave, Mill Valley, CA 94941
| Property Type | Commercial |
|---|---|
| Details | 2,916 sqft · built 1964 |
| Lot Size | 0.101 acres (4,400 sqft) |
| Owner | Company Name on Record |
| Last Sale | $800,000 (Feb 2013) |
| Tax Bill | $11,789 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 028-211-06 |
| Primary APN | 028-211-06 |
|---|
| Building Area | 2,916 sqft Total Area |
|---|
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Lot Area | 4,400 sqft (0.101 acres) |
| Street Address | 21 LOCUST AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2852 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Legal Description | LJ&LK /B2P55 M TAMALPAIS PARK |
| Legal Subdivision | TAMALPAIS PARK |
| Legal Lot Number | J,K |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 126100 |
Source: Marin County records, as of July 13, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 21 LOCUST AVE, 1, MILL VALLEY, CA 94941-2852 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 28, 2013 · Amount on Record |
| Deed Sale | Feb 28, 2013 · Amount on Record |
| Deed Document Number | 201314033 |
| Record Updated | Sep 20, 2026 |
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 | $870,070 (+2%) Land $710,262 Building $159,808 | |
| 2025 | $11,789.00 (+5.66%) | $853,011 (+4.04%) Land $696,336 Building $156,675 |
| 2023 | $11,158.00 (+3.76%) | $819,892 Land $669,300 Building $150,592 |
| 2022 | $10,754.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 61 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 69 units insured incl. 8 condo units |
| Nearby Flood Claims | 43 (1979–2024) |
| Claims Outside the SFHA | 6 of 43 |
| Most Recent Claim | Dec 2024 · river or lake flooding |
| Claims by Event |
|
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
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 825 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, T-Mobile.
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