Marin County property record for 57 Sierra Ave, San Anselmo, CA 94960
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 811 sqft · built 1922 |
| Lot Size | 0.106 acres (4,615 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $71,500 (Dec 2003) |
| Tax Bill | $10,140 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 005-194-16 |
| Primary APN | 005-194-16 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 811 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1922 |
|---|---|
| Effective Year Built | Effective 1922 |
| Architectural Style | Contemporary |
| Lot Area | 4,615 sqft (0.106 acres) |
| Garage Area | 280 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 57 SIERRA AVE |
|---|---|
| City | SAN ANSELMO |
| State | CA |
| Zip | 94960-1821 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | BLK 1 |
| Legal Subdivision | BUSH |
| Legal Block | 1 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 116000 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 57 SIERRA AVE, SAN ANSELMO, CA 94960-1821 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 2, 2003 · Amount on Record |
| Deed Sale | Dec 2, 2003 · Amount on Record |
| Prior Sale | Nov 27, 2002 · Amount on Record |
| Deed Document Number | 2003145685 |
| Prior Transfer Date | Jan 30, 1995 |
| Prior Transfer Doc | 0000017896 |
| Record Updated | Oct 29, 2026 |
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | San Anselmo Town |
| Elementary School District | Ross Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $664,721 (+2%) Land $564,275 Building $100,446 | |
| 2025 | $10,140.00 (+4.35%) Homeowner's exemption | $651,689 (+4.04%) Land $553,212 Building $98,477 |
| 2023 | $9,717.00 (+1.33%) Homeowner's exemption | $626,390 Land $531,736 Building $94,654 |
| 2022 | $9,589.00 |
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 X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 76 individual policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 104 units insured incl. 28 condo units |
| Nearby Flood Claims | 52 (1978–2023) |
| Claims Outside the SFHA | 18 of 52 |
| Most Recent Claim | Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| 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 64% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Direct burnable vegetation |
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 810 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired.
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