Marin County property record for 81 Sycamore Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,188 sqft · built 1907 |
| Lot Size | 0.129 acres (5,625 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,825,000 (Apr 2011) |
| Tax Bill | $30,219 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 028-221-25 |
| Primary APN | 028-221-25 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,188 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1907 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Shingle |
| Roof Material | Composition Shingle |
| Lot Area | 5,625 sqft (0.129 acres) |
| Deck Area | 755 sqft |
| Patio Area | 1,155 sqft |
| Heating System | Central |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 81 SYCAMORE AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2721 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS6 |
| Legal Description | L69 /B2P55 OR TAMALPAIS PARK |
| Legal Subdivision | TAMALPAIS PARK |
| Legal Lot Number | 69 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 126100 |
81 Sycamore Ave is owner-occupied and held in a trust since April 2011.
Source: Marin County records, as of August 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 81 SYCAMORE AVE, MILL VALLEY, CA 94941-2721 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
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 Sale | Apr 28, 2011 · Amount on File |
| Deed Sale | Apr 28, 2011 · Amount on File |
| Prior Sale | Nov 15, 2007 · Amount on File |
| Deed Document Number | 201122414 |
| Prior Transfer Date | Aug 27, 1997 |
| Prior Transfer Doc | 0000047659 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 81 Sycamore Ave was $30,219.
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 | $2,384,764 (+2%) Land $1,306,720 Building $1,078,044 | |
| 2025 | $30,219.00 | $2,338,007 Land $1,281,100 Building $1,056,907 |
| 2023 | $28,804.00 (+3.97%) | $2,247,250 Land $1,231,370 Building $1,015,880 |
| 2022 | $27,704.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 81 Sycamore Ave in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.
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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File 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.
Wildfire risk around 81 Sycamore Ave is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within 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 762 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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