Marin County property record for 475 Wellesley Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1 ba · 1,470 sqft · built 1964 |
| Lot Size | 0.128 acres (5,565 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $3,718 (2025) |
| Deeds & Mortgages | Jun 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 050-032-28 |
| Primary APN | 050-032-28 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 1,470 sqft Living Area |
| Basement Area | 910 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Contemporary |
| Lot Area | 5,565 sqft (0.128 acres) |
| Deck Area | 256 sqft |
| Patio Area | 256 sqft |
| Heating System | Central |
|---|
| Street Address | 475 WELLESLEY AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3540 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP E6 606 |
| Legal Subdivision | MILL VLY TERRACE 01 |
| Legal Block | 3 |
| Legal Lot Number | 3 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 128100 |
475 Wellesley Ave is owned by a company that acquired it in June 2021 and is owner-occupied.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 475 WELLESLEY AVE, MILL VALLEY, CA 94941-3540 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 Transfer Date | Jun 15, 2021 |
| Transfer Doc | 0000041138 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Jun 22, 2021 |
| Property Address | 475 WELLESLEY AVE, MILL VALLEY, CA 94941-3540 |
| Document Number | 0000041139 |
| Map Reference | VOL 5 PG 11 |
| Instrument Date | Apr 14, 2021 |
| Instrument | 2021-0041139 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 475 WELLESLEY AVE, MILL VALLEY, CA 94941-3540 |
The 2025 property tax bill for 475 Wellesley Ave was $3,718 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 | $141,289 (+2%) Land $40,011 Building $101,278 | |
| 2025 | $3,718.00 Homeowner's exemption | $138,518 Land $39,226 Building $99,292 |
| 2023 | $3,527.00 (+2.5%) Homeowner's exemption | $133,140 Land $37,703 Building $95,437 |
| 2022 | $3,441.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 475 Wellesley Ave in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1982.
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 | 4 in force |
| Nearby Flood Claims | 4 (1982–1998) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Apr 1998 · Severe Winter Storms And Flooding |
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 475 Wellesley 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 589 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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