Marin County property record for 80 Seafirth Rd, Tiburon, CA 94920
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 2,574 sqft · built 1960 |
| Lot Size | 0.338 acres (14,700 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $3,600,000 (Dec 2025) |
| Tax Bill | $12,037 (2025) |
| Deeds & Mortgages | Dec 2025 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-101-03 |
| Primary APN | 039-101-03 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,574 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Contemporary |
| Lot Area | 14,700 sqft (0.338 acres) |
| Garage Area | 630 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 540 sqft |
| Patio Area | 540 sqft |
| Heating System | Central |
|---|
| Street Address | 80 SEAFIRTH RD |
|---|---|
| City | BELVEDERE TIBURON |
| State | CA |
| Zip | 94920-1140 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP 8 PG 12 LOT 11 |
| Legal Subdivision | SEAFIRTH |
| Legal Lot Number | 11 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 124200 |
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 Company Names on Record |
|---|---|
| Mailing Address | 80 SEAFIRTH RD, BELVEDERE TIBURON, CA 94920-1140 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 16, 2025 · Amount on Record |
| Deed Sale | Dec 16, 2025 · Amount on Record |
| Deed Document Number | 202532176 |
| Prior Transfer Date | Dec 9, 2025 |
| Prior Transfer Doc | 0000032175 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Dec 16, 2025 |
| Property Address | 80 SEAFIRTH RD, TIBURON, CA 94920-1140 |
| Document Number | 0000032176 |
| Map Reference | VOL 8 PG 12 |
| Instrument Date | Dec 11, 2025 |
| Instrument | 2025-0032176 |
| Transaction Type | Transfer |
| Record Updated | Jan 7, 2026 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $3,960.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 80 SEAFIRTH RD, TIBURON, CA 94920-1140 |
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Tiburon Town |
| 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 | $3,600,000 (+304.26%) Land $2,400,000 Building $1,200,000 | |
| 2025 | $12,037.00 (+9.12%) Homeowner's exemption | $890,516 (+4.04%) Land $408,106 Building $482,410 |
| 2023 | $11,031.00 (+4.12%) Homeowner's exemption | $855,942 Land $392,262 Building $463,680 |
| 2022 | $10,595.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 32 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 37 units insured incl. 5 condo units |
| Nearby Flood Claims | 14 (1982–2026) |
| Claims Outside the SFHA | 7 of 14 |
| Most Recent Claim | Jan 2026 · tidal / storm surge |
| 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 99.8% of the US · lower than 99.8% of California |
|---|---|
| Wildfire Likelihood | Under 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 133 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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