Marin County property record for 521 Marin Ave, Mill Valley, CA 94941 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 3.5 Baths |
| Year Built | Built 1975 |
| Square Footage | 2,380 sqft Living Area |
| Lot Size | 7,500 sqft (0.172 acres) |
| Garage | 264 sqft |
| Last Sale | $1,150,000 (2015) |
| Tax Bill | $22,241.00 (2025) |
| Primary APN | 049-137-04 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 6 Rooms |
| Building Area | 2,380 sqft Living Area |
| Stories | 2 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Contemporary Style |
| Exterior Material | Wood Siding Exterior |
| Roof Material | Composition Shingle Roof |
| Lot Area | 7,500 sqft (0.172 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Area | 264 sqft Garage |
| Deck Area | 532 sqft Deck |
| Patio Area | 532 sqft Patio |
| Heating System | Central Heating |
|---|---|
| Heating Fuel | Gas Heating Fuel |
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 521 MARIN AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3976 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | BLK 8 LOT 18 |
| Legal Subdivision | LITTLE CITY FARMS |
| Legal Block | 8 |
| Legal Lot Number | 18 |
| Jurisdiction | MARIN CA |
| Minor Civil Division | SOUTHEAST MARIN |
| Census Blockgroup | 2 |
| Census Block | 2002 |
| Census Tract | 128100 |
Source: Marin County records · APN 049-137-04
Assessment roll updated July 13, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 521 MARIN AVE, MILL VALLEY, CA 94941-3976 |
| Owner Type | Owner is a Company |
| Vesting | Trustor/Debtor (Borrower in Default/Foreclosure On Trustee's Deed) |
| Date | Document |
|---|---|
| Apr 08, 2019 | Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA |
| Jan 25, 2019 | Quit Claim Deed, Transfer OTHER |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 31, 2015 · Amount on Record |
| Deed Sale | Dec 31, 2015 · Amount on Record |
| Deed Doc Number | 201560576 |
| Last Transfer Date | Jan 17, 2019 |
| Transfer Doc | 0000002353 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 521 MARIN AVE, MILL VALLEY, CA 94941-3976 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | ORANGE COAST TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000011210 |
|---|---|
| Date | Apr 08, 2019 |
| Instrument | 2019-0011210 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 23, 2049 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Jan 25, 2019 |
| Property Address | 521 MARIN AVE, MILL VALLEY, CA 94941-3976 |
| Document Number | 0000002353 |
| Instrument Date | Jan 17, 2019 |
| Instrument | 2353 |
| Transaction Type | Transfer |
| Record Updated | Feb 11, 2019 |
| Title Company | OTHER |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 521 MARIN AVE MILL VALLEY CA 949413976, MILL VALLEY, CA 94941-3976 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,470,845 (+2%) Land $935,766 Building $535,079 | |
| 2025 | $22,241.00 (+5.99%) | $1,442,010 (+4.04%) Land $917,421 Building $524,589 |
| 2023 | $20,985.00 (+8.34%) | $1,386,023 Land $881,802 Building $504,221 |
| 2022 | $19,370.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Low above 34% of the US · above 20% of California |
|---|---|
| Wildfire Likelihood | About 1 in 2,564 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
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