Marin County property record for 333 Marion Ave, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,908 sqft · built 1939 |
| Lot Size | 0.218 acres (9,500 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $6,412 (2025) |
| Deeds & Mortgages | Feb 2022 Mortgage Jun 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 028-137-01 |
| Primary APN | 028-137-01 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,908 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1939 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Contemporary |
| Lot Area | 9,500 sqft (0.218 acres) |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 273 sqft |
| Patio Area | 273 sqft |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 333 MARION AVE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2685 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PART OF LOT 246 |
| Legal Subdivision | TAMALPAIS LAND & WATER CO MAP |
| Legal Lot Number | 246 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 127000 |
333 Marion Ave is owner-occupied and held in a trust since October 2010.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 333 MARION AVE, MILL VALLEY, CA 94941-2685 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Feb 10, 2022 | Deed of Trust, Mortgage · Conventional Mortgage MUTUAL OF OMAHA MORTGAGE INC |
| Jun 4, 2021 | Deed of Trust, Mortgage · Commercial Mortgage CITIBANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 20, 2010 |
| Transfer Doc | 0000054692 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 333 MARION AVE, MILL VALLEY, CA 94941-2685 |
| Transaction Type | Mortgage |
| Record Updated | Feb 22, 2022 |
| Name | Verified Name |
|---|---|
| Address | 333 MARION AVE, MILL VALLEY, CA 94941-2685 |
| Document Number | 0000005298 |
|---|---|
| Date | Feb 10, 2022 |
| Instrument | 2022-0005298 |
| Name | MUTUAL OF OMAHA MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92108 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 333 MARION AVE, MILL VALLEY, CA 94941-2685 |
| Transaction Type | Mortgage |
| Record Updated | Jun 16, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 333 MARION AVE, MILL VALLEY, CA 94941-2685 |
| Document Number | 0000036895 |
|---|---|
| Date | Jun 4, 2021 |
| Instrument | 2021-0036895 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Address | O FALLON, MO 63368 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 333 Marion Ave was $6,412 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 | $332,462 (+2%) Land $65,018 Building $267,444 | |
| 2025 | $6,412.00 Homeowner's exemption | $325,943 Land $63,743 Building $262,200 |
| 2023 | $7,147.00 (+8.37%) Homeowner's exemption | $313,288 Land $61,268 Building $252,020 |
| 2022 | $6,595.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 333 Marion Ave in Zone X, an area of minimal flood risk, though there have been 3 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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 3 (1982–1983) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Feb 1983 · Coastal Storms, Floods, Slides & Tornadoes |
| 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 333 Marion Ave is low, with a 0.03% 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 | 0.03% 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 351 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.
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