Marin County property record for 544 Ethel Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,031 sqft · built 1908 |
| Lot Size | 0.218 acres (9,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $760,000 (May 2010) |
| Tax Bill | $15,240 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 048-011-03 |
| Primary APN | 048-011-03 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,031 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1908 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Contemporary |
| Lot Area | 9,500 sqft (0.218 acres) |
| Garage Area | 180 sqft |
| Deck Area | 25 sqft |
| Patio Area | 25 sqft |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 544 ETHEL AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3326 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | HECKMAN |
| Legal Lot Number | 5 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 128200 |
544 Ethel Ave is owned and occupied by an individual who bought it in May 2010.
Source: Marin County records, as of July 13, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 544 ETHEL AVE, MILL VALLEY, CA 94941-3326 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | May 21, 2010 · Amount on File |
| Deed Sale | May 21, 2010 · Amount on File |
| Deed Document Number | 201025130 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 544 Ethel Ave was $15,240 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| 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 | $1,000,570 (+2%) Land $855,751 Building $144,819 | |
| 2025 | $15,240.00 Homeowner's exemption | $980,954 Land $838,974 Building $141,980 |
| 2023 | $14,380.00 (+4.05%) Homeowner's exemption | $942,871 Land $806,403 Building $136,468 |
| 2022 | $13,820.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 544 Ethel Ave in Zone X, an area of minimal flood risk, within 500 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 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 17 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 17 in force |
| Nearby Flood Claims | 9 (1982–2017) |
| Claims Outside the SFHA | 7 of 9 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, 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.
Wildfire risk around 544 Ethel 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 | 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 825 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 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, T-Mobile.
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