343 Marin Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 343 Marin Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,529 sqft · built 1964
Lot Size	0.186 acres (8,100 sqft)
Owner	2 Trust Names on File
Last Sale	$1,200,000 (Jan 2019)
Tax Bill	$26,671 (2025)
Deeds & Mortgages	Nov 2022 Line of Credit Jun 2021 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`049-161-54`

Property Details

APN / Parcel Number

Primary APN	`049-161-54`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,529 sqft Living Area
Basement Area	756 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1975
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	8,100 sqft (0.186 acres)
Garage Area	514 sqft
Parking Spaces	2 Parking Spaces
Deck Area	360 sqft
Patio Area	360 sqft

Utilities, Heating & Cooling

Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	343 MARIN AVE
City	MILL VALLEY
State	CA
Zip	94941-4047
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	BLK A LOT 000218 MAP 000002 00119
Legal Subdivision	TAMALPAIS VLY 01
Legal Block	A
Legal Lot Number	218
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3008
Census Tract	128100

Owner

343 Marin Ave is owner-occupied and held in a trust since May 2021.

Source: Marin County records, as of August 27, 2026

Owner of Record	2 Trust Names on File
Mailing Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

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
Nov 30, 2022	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA NA
Jun 3, 2021	Intrafamily Transfer, Transfer
Jan 8, 2019	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 8, 2019 · Amount on File
Deed Sale	Jan 8, 2019 · Amount on File
Deed Document Number	2019667
Last Transfer Date	May 14, 2021
Transfer Doc	0000036482
Record Updated	Oct 29, 2026

November 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047
Transaction Type	Mortgage
Record Updated	Dec 13, 2022
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047

Mortgage

Document Number	0000038976
Date	Nov 30, 2022
Instrument	2022-0038976

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	FORT WORTH, TX 76155

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Jun 3, 2021
Property Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047
Document Number	0000036482
Map Reference	MB 2 PG 119
Instrument Date	May 14, 2021
Instrument	2021-0036482
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047

January 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Jan 8, 2019
Property Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047
Document Number	0000000667
Map Reference	MB 2 PG 119
Instrument Date	Dec 28, 2018
Instrument	2019-0000667
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	OLD REPUBLIC TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	343 MARIN AVE, MILL VALLEY, CA 94941-4047

Mortgage

Document Number	0000000668
Date	Jan 8, 2019
Instrument	2019-0000668

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 343 Marin Ave was $26,671.

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		$2,002,872 (+11.67%) Land $796,467 Building $1,206,405
2025	$26,671.00	$1,793,600 Land $780,850 Building $1,012,750
2023	$20,233.00 (+3.59%)	$1,286,628 Land $750,533 Building $536,095
2022	$19,532.00

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

Flood

FEMA maps place 343 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 343 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 79% 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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