337 Marion Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 337 Marion Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,454 sqft · built 1985
Lot Size	0.157 acres (6,832 sqft)
Owner	2 Company Names on Record
Last Sale	$1,900,000 (May 2018)
Tax Bill	$28,327 (2025)
Deeds & Mortgages	May 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`028-137-02`

Property Details

APN / Parcel Number

Primary APN	`028-137-02`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Building Area	2,454 sqft Living Area
Basement Area	227 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1985
Effective Year Built	Effective 1995
Architectural Style	Contemporary
Lot Area	6,832 sqft (0.157 acres)
Garage Area	369 sqft
Parking Spaces	1 Parking Space
Deck Area	430 sqft
Patio Area	508 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	337 MARION AVE
City	MILL VALLEY
State	CA
Zip	94941-2685
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 246
Legal Subdivision	TAMALPAIS LAND & WATER CO
Legal Lot Number	246
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	2
Census Block	2009
Census Tract	127000

Owner

Source: Marin County records, as of August 27, 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	337 MARION AVE, MILL VALLEY, CA 94941-2685
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 10, 2018 · Amount on Record
Deed Sale	May 10, 2018 · Amount on Record
Prior Sale	Jun 3, 1997 · Amount on Record
Deed Document Number	201816664
Prior Transfer Date	Oct 25, 1995
Prior Transfer Doc	0000053227
Record Updated	Oct 29, 2026

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	May 10, 2018
Property Address	337 MARION AVE, MILL VALLEY, CA 94941-2685
Document Number	0000016664
Instrument Date	Apr 27, 2018
Instrument	16664
Transaction Type	Transfer
Record Updated	May 21, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,090.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	337 MARION AVE MILL VALLEY CA 949412685, MILL VALLEY, CA 94941-2685

Mortgage

Document Number	16665
Date	May 10, 2018
Instrument	16665

Lender

Name	WFB NA
Address	101 N PHILLIPS AVE, SIOUX FALLS, SD 57104-6738

Agreement

Amount	Amount Recorded
Term	360 Months
Due	May 9, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.75%

Tax Assessment & Valuation

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

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)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,205,064 (+2%) Land $1,044,504 Building $1,160,560
2025	$28,327.00 (+3.79%) Homeowner's exemption	$2,161,839 (+4.04%) Land $1,024,029 Building $1,137,810
2023	$27,293.00 (+3.59%) Homeowner's exemption	$2,077,897 Land $984,267 Building $1,093,630
2022	$26,348.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

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	Coastal Storms, Floods, Slides & Tornadoes, Feb 1983 · 2 claims

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

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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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