351 Marin Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 351 Marin Ave, Mill Valley, CA 94941

Property Summary

Property Type	Duplex
Details	4 bd · 3 ba · 1,978 sqft · built 1955
Lot Size	0.338 acres (14,700 sqft)
Owner	2 Individual Names on File
Tax Bill	$9,979 (2025)
Deeds & Mortgages	Aug 2018 Line of Credit Oct 2017 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`049-161-18`

Property Details

APN / Parcel Number

Primary APN	`049-161-18`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Units	2 Units
Building Area	1,978 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1965
Architectural Style	Contemporary
Lot Area	14,700 sqft (0.338 acres)
Garage Area	440 sqft
Deck Area	488 sqft
Patio Area	488 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	351 MARIN AVE
City	MILL VALLEY
State	CA
Zip	94941-4047
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Subdivision	TAMALPAIS VLY SUB 1
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3008
Census Tract	128100

Owner

351 Marin Ave, a duplex, is owned by two individuals who acquired it in July 2017.

Source: Marin County records, as of July 13, 2026

Owner of Record	2 Individual Names on File
Mailing Address	142 RAYMOND AVE, SAN FRANCISCO, CA 94134-2310
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Aug 30, 2018	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA
Oct 17, 2017	Quit Claim Deed, Transfer STEWART TITLE
Oct 17, 2017	Quit Claim Deed, Transfer STEWART TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jul 26, 2017
Transfer Doc	0000040972
Record Updated	Sep 20, 2026

August 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	351 MARIN AVE, MILL VALLEY, CA 94941-4047
Document Number	0000032251
Instrument Date	Aug 30, 2018
Transaction Type	Mortgage
Record Updated	Sep 24, 2018
Title Company	AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	353 MARIN AVE MILL VALLEY CA 949414047, MILL VALLEY, CA 94941-4047

Mortgage

Document Number	0000032251
Date	Sep 12, 2018
Instrument	32251

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Oct 17, 2017
Property Address	351 MARIN AVE, MILL VALLEY, CA 94941-4047
Document Number	0000040973
Instrument Date	Jul 26, 2017
Instrument	40973
Transaction Type	Transfer
Record Updated	Nov 17, 2017
Title Company	STEWART TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	142 RAYMOND AVE SAN FRANCISCO CA 941342310, SAN FRANCISCO, CA 94134-2310

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Oct 17, 2017
Property Address	351 MARIN AVE, MILL VALLEY, CA 94941-4047
Document Number	0000040972
Instrument Date	Jul 26, 2017
Instrument	40972
Transaction Type	Transfer
Record Updated	Nov 1, 2017
Title Company	STEWART TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	142 RAYMOND AVE SAN FRANCISCO CA 941342310, SAN FRANCISCO, CA 94134-2310

Tax Assessment & Valuation

The 2025 property tax bill for 351 Marin Ave was $9,979.

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

Property Jurisdictions

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)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$197,644 (+2%) Land $42,511 Building $155,133
2025	$9,979.00	$193,770 Land $41,678 Building $152,092
2023	$10,411.00 (+13.64%)	$186,246 Land $40,060 Building $146,186
2022	$9,161.00

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

Flood

FEMA maps place 351 Marin Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 88 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	88 in force
Nearby Flood Claims	120 (1978–2026)
Claims Outside the SFHA	13 of 120
Most Recent Claim	Jan 2026 · other causes
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 5 claims Coastal Storms, Floods, Slides & Tornadoes, Feb 1983 · 6 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 29 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

Wildfire risk around 351 Marin Ave is low, with a 0.05% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 64% of the US · lower than 78% of California
Wildfire Likelihood	0.05% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 436 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Unwired, Verizon.

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