Marin County property record for 150 Prospect Ave, San Anselmo, CA 94960
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 3,552 sqft · built 1937 |
| Lot Size | 0.602 acres (26,208 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $23,432 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 006-192-28 |
| Primary APN | 006-192-28 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Building Area | 3,552 sqft Living Area |
| Basement Area | 130 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Contemporary |
| Lot Area | 26,208 sqft (0.602 acres) |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Area | 462 sqft |
| Heating System | Central |
|---|
| Street Address | 150 PROSPECT AVE |
|---|---|
| City | SAN ANSELMO |
| State | CA |
| Zip | 94960-2521 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | MAP C1 586 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 2 |
| Census Block | 2022 |
| Census Tract | 117000 |
Source: Marin County records, as of July 13, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 150 PROSPECT AVE, SAN ANSELMO, CA 94960-2521 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 7, 1993 |
| Deed Sale | Dec 7, 1993 |
| Deed Document Number | 1993103359 |
| Last Transfer Date | Dec 5, 2012 |
| Transfer Doc | 0000077785 |
| Record Updated | Sep 20, 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 | $1,853,815 (+2%) Land $1,014,120 Building $839,695 | |
| 2025 | $23,432.00 (+4.08%) Homeowner's exemption | $1,817,468 (+4.04%) Land $994,236 Building $823,232 |
| 2023 | $22,513.00 (+0.79%) Homeowner's exemption | $1,746,899 Land $955,632 Building $791,267 |
| 2022 | $22,336.00 |
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 AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 28 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 28 in force |
| Nearby Flood Claims | 45 (1980–2019) |
| Claims Outside the SFHA | 11 of 45 |
| Most Recent Claim | Mar 2019 · 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 626 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Unwired.
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