Marin County property record for 57 Thalia St, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,544 sqft · built 1931 |
| Lot Size | 0.128 acres (5,580 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,055,000 (Jan 2010) |
| Tax Bill | $18,966 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-193-08 |
| Primary APN | 029-193-08 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,544 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1931 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,580 sqft (0.128 acres) |
| Garage Area | 361 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 509 sqft |
| Patio Area | 509 sqft |
| Heating System | Central |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 57 THALIA ST |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2020 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS6 |
| Legal Description | MAP 3 PG 6 BLK D LOT 12 |
| Legal Subdivision | BOYLE PARK 01 |
| Legal Block | D |
| Legal Lot Number | 12 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 126100 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 57 THALIA ST, MILL VALLEY, CA 94941-2020 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 29, 2010 · Amount on Record |
| Deed Sale | Jan 29, 2010 · Amount on Record |
| Prior Sale | Nov 19, 2004 · Amount on Record |
| Deed Document Number | 20104987 |
| Record Updated | Sep 20, 2026 |
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 | $1,383,683 (+2%) Land $789,924 Building $593,759 | |
| 2025 | $18,966.00 (+4.81%) Homeowner's exemption | $1,356,557 (+4.04%) Land $774,438 Building $582,119 |
| 2023 | $18,095.00 (+4.43%) Homeowner's exemption | $1,303,891 Land $744,372 Building $559,519 |
| 2022 | $17,328.00 |
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 |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 5 (1982–2009) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Oct 2009 · other causes |
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 | 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 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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