Marin County property record for 13 Oak Ave, Belvedere, CA 94920
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 2,595 sqft · built 1958 |
| Lot Size | 0.286 acres (12,464 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $18,067 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 060-131-11 |
| Primary APN | 060-131-11 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 2 Units |
| Building Area | 2,595 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Contemporary |
| Lot Area | 12,464 sqft (0.286 acres) |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 993 sqft |
| Patio Area | 993 sqft |
| Heating System | Central |
|---|
| Street Address | 13 OAK AVE |
|---|---|
| City | BELVEDERE TIBURON |
| State | CA |
| Zip | 94920-2455 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | MAP 7 PG 83 BLK H LOT 14 |
| Legal Block | H |
| Legal Lot Number | 14 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 123000 |
13 Oak Ave, a duplex, is owned by a company that acquired it in August 1995 and is owner-occupied.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 13 OAK AVE, BELVEDERE TIBURON, CA 94920-2455 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 Transfer Date | Aug 9, 1995 |
| Transfer Doc | 0000038734 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 13 Oak Ave was $18,067 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Belvedere City |
| Elementary School District | Reed Union Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $860,467 (+2%) Land $422,632 Building $437,835 | |
| 2025 | $18,067.00 Homeowner's exemption | $843,597 Land $414,346 Building $429,251 |
| 2023 | $16,484.00 (-0.44%) Homeowner's exemption | $810,844 Land $398,259 Building $412,585 |
| 2022 | $16,557.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 13 Oak Ave in Zone X, an area of minimal flood risk, though there have been 6 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 |
| Flood Insurance Cost | Premium on File median of 42 policies |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 6 (1982–2026) |
| Claims Outside the SFHA | 4 of 6 |
| Most Recent Claim | Jan 2026 · tidal / storm surge |
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 13 Oak Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% 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 441 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 |
May also be available: AT&T, Etheric Networks, T-Mobile, Unwired.
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