308 Marin Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 308 Marin Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,006 sqft · built 1952
Lot Size	0.152 acres (6,600 sqft)
Owner	2 Trust Names on File
Last Sale	$3,250,000 (May 2026)
Tax Bill	$8,054 (2025)
Deeds & Mortgages	May 2026 Sale & Mortgage Jul 2019 Transfer
Flood Zone	Zone AE (high risk)
APN	`052-031-08`

Property Details

APN / Parcel Number

Primary APN	`052-031-08`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,006 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	6,600 sqft (0.152 acres)
Garage Area	264 sqft
Parking Spaces	1 Parking Space
Deck Area	20 sqft

Utilities, Heating & Cooling

Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	308 MARIN AVE
City	MILL VALLEY
State	CA
Zip	94941-4057
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 7 PG 55 UNIT 4 LOT 532
Legal Subdivision	KAY PARK 04
Legal Tract	4
Legal Lot Number	532
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3013
Census Tract	128100

Owner

308 Marin Ave is owner-occupied and held in a trust since May 2026.

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

Owner of Record	2 Trust Names on File
Mailing Address	308 MARIN AVE, MILL VALLEY, CA 94941-4057
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable 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
May 22, 2026	Grant Deed, Transfer · Conventional Mortgage CROSSCOUNTRY MORTGAGE
Jul 3, 2019	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 22, 2026 · Amount on File
Deed Sale	May 22, 2026 · Amount on File
Prior Sale	Apr 1, 2025 · Amount on File
Deed Document Number	202615238
Prior Transfer Date	May 7, 2019
Prior Transfer Doc	0000023137
Record Updated	Oct 29, 2026

May 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	May 22, 2026
Property Address	308 MARIN AVE, MILL VALLEY, CA 94941-4057
Document Number	0000015238
Instrument Date	May 20, 2026
Instrument	202615238
Transaction Type	Transfer
Record Updated	Jun 3, 2026
Title Company	WFG NATIONAL TITLE INSURANCE, WFG NATIONAL TITLE INSURANCE C

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$361,075.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	308 MARIN AVE, MILL VALLEY, CA 94941-4057

Mortgage

Document Number	0000015239,
Date	May 22, 2026
Instrument	202615239

Lender

Name	CROSSCOUNTRY MORTGAGE

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 1, 2056

Interest

Rate Type	Fixed Rate
Rate	6.37%
Initial Type	Fixed Rate
Max Rate	-1%

July 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Jul 3, 2019
Property Address	308 MARIN AVE, MILL VALLEY, CA 94941-4057
Document Number	0000023137
Instrument Date	May 17, 2019
Instrument	23137
Transaction Type	Transfer
Record Updated	Jul 12, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	308 MARIN AVE MILL VALLEY CA 949414057, MILL VALLEY, CA 94941-4057

Tax Assessment & Valuation

The 2025 property tax bill for 308 Marin Ave was $8,054.

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		$804,500 (+260.08%) Land $586,500 Building $218,000
2025	$8,054.00	$223,424 Land $74,136 Building $149,288
2023	$5,365.00 (+3.21%) Homeowner's exemption	$214,750 Land $71,258 Building $143,492
2022	$5,198.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 308 Marin Ave in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required federally backed loans
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 308 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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