Marin County property record for 548 Marin Ave, Mill Valley, CA 94941
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 3,068 sqft · built 1946 |
| Lot Size | 0.478 acres (20,800 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $2,200,000 (Sep 2022) |
| Tax Bill | $37,946 (2025) |
| Deeds & Mortgages | Sep 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 049-082-11 |
| Primary APN | 049-082-11 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 2 Units |
| Building Area | 3,068 sqft Living Area |
| Basement Area | 285 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Contemporary |
| Lot Area | 20,800 sqft (0.478 acres) |
| Garage Area | 513 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 252 sqft |
| Patio Area | 252 sqft |
| Street Address | 548 MARIN AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3944 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Subdivision | TWAIN HARTE LODGE 02 |
| Legal Block | Q |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 128100 |
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 | 546 MARIN AVE, MILL VALLEY, CA 94941-3944 |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 2, 2022 · Amount on Record |
| Deed Sale | Sep 2, 2022 · Amount on Record |
| Deed Document Number | 202231387 |
| Prior Transfer Date | Aug 11, 2022 |
| Prior Transfer Doc | 0000029903 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Sep 2, 2022 |
| Property Address | 548 MARIN AVE, MILL VALLEY, CA 94941-3944 |
| Document Number | 0000031387 |
| Instrument Date | Aug 29, 2022 |
| Instrument | 2022-0031387 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,420.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 546 MANN AVENUE, MILL VALLEY, CA 94941 |
| Document Number | 0000031388 |
|---|---|
| Date | Sep 2, 2022 |
| Instrument | 2022-0031388 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.75% |
| Type Change Date | Oct 1, 2029 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 5.7% |
| Index | Other |
| Max Rate | 8.75% |
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 | $2,695,448 (+2%) Land $1,613,024 Building $1,082,424 | |
| 2025 | $37,946.00 (+7.33%) | $2,642,616 (+4.04%) Land $1,581,408 Building $1,061,208 |
| 2023 | $35,356.00 (+283.3%) | $2,540,000 Land $1,520,000 Building $1,020,000 |
| 2022 | $9,224.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 6 (1982–2019) |
| Claims Outside the SFHA | 3 of 6 |
| Most Recent Claim | Feb 2019 · Severe Winter Storms, Flooding, Landslides, 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% 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 496 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: T-Mobile, Unwired, Verizon.
5G and 4G LTE (outdoors only)
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