Marin County property record for 31 Madrona St, Mill Valley, CA 94941
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 3,222 sqft · built 1883 |
| Lot Size | 0.147 acres (6,400 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $102,500 (Dec 2003) |
| Tax Bill | $20,052 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 028-052-03 |
| Primary APN | 028-052-03 |
|---|
| Units | 3 Units |
|---|---|
| Building Area | 3,222 sqft Living Area |
| Year Built | Built 1883 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Multi-Family |
| Lot Area | 6,400 sqft (0.147 acres) |
| Street Address | 31 MADRONA ST |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1811 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | BLK 6 LOT 25-28 |
| Legal Subdivision | TAMALPAIS LAND & WATER COS |
| Legal Block | 6 |
| Legal Lot Number | 25-28 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 5 |
| Census Block | 5010 |
| Census Tract | 127000 |
31 Madrona St, a residential property, is owned and occupied by two individuals who bought it in December 2003.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 1354, SAUSALITO, CA 94966-1354 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Dec 5, 2003 · Amount on File |
| Deed Sale | Dec 5, 2003 · Amount on File |
| Prior Sale | Aug 18, 2003 · Amount on File |
| Deed Document Number | 2003147057 |
| Prior Transfer Date | Dec 1, 2003 |
| Prior Transfer Doc | 0000147057 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 31 Madrona St was $20,052 with a homeowner's exemption.
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 | $1,486,393 (+2%) Land $978,844 Building $507,549 | |
| 2025 | $20,052.00 Homeowner's exemption | $1,457,252 Land $959,654 Building $497,598 |
| 2023 | $20,232.00 (+3.96%) Homeowner's exemption | $1,400,672 Land $922,394 Building $478,278 |
| 2022 | $19,462.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 31 Madrona St in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1983.
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 14 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 11 (1983–2017) |
| Claims Outside the SFHA | 4 of 11 |
| Most Recent Claim | Mar 2017 · 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 31 Madrona St 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 595 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 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile, Unwired.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures