330 Ralston Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 330 Ralston Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 756 sqft · built 1925
Lot Size	0.414 acres (18,020 sqft)
Owner	Individual Name on File
Tax Bill	$15,375 (2025)
Deeds & Mortgages	Sep 2022 Transfer Sep 2022 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`027-033-18`

Property Details

APN / Parcel Number

Primary APN	`027-033-18`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Building Area	756 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1940
Architectural Style	Contemporary
Lot Area	18,020 sqft (0.414 acres)
Deck Area	210 sqft
Patio Area	210 sqft

Location & Zoning

Street Address	330 RALSTON AVE
City	MILL VALLEY
State	CA
Zip	94941-4534
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	PART OF LOT 15,16
Legal Subdivision	TAMALPAIS LAND & WATER CO
Legal Lot Number	15
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	5
Census Block	5002
Census Tract	127000

Owner

330 Ralston Ave is owned and occupied by an individual who acquired it in September 2022.

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

Owner of Record	Individual Name on File
Mailing Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534
Occupancy	Owner Occupied
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
Sep 20, 2022	Intrafamily Transfer, Transfer
Sep 20, 2022	Intrafamily Transfer, Transfer
Feb 20, 2019	Affidavit of Death, Transfer ATTORNEY ONLY
Feb 20, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Sep 2, 2022
Transfer Doc	0000032809
Record Updated	Sep 20, 2026

September 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Sep 20, 2022
Property Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534
Document Number	0000032810
Instrument Date	Sep 2, 2022
Instrument	2022-0032810
Transaction Type	Transfer
Record Updated	Oct 11, 2022

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
Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534

September 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Sep 20, 2022
Property Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534
Document Number	0000032809
Instrument Date	Sep 2, 2022
Instrument	2022-0032809
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	Family Living Trust
Address	3535 BRUNELL DR, OAKLAND, CA 94602-4106
Investor	Possibly a Property Investor

February 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	MARIN CA
Recording Date	Feb 20, 2019
Property Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534
Document Number	0000004808
Instrument Date	Feb 19, 2019
Instrument	4808
Transaction Type	Transfer
Record Updated	Mar 1, 2019
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	3535 BRUNELL DR OAKLAND CA 946024106, OAKLAND, CA 94602-4106

February 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Feb 20, 2019
Property Address	330 RALSTON AVE, MILL VALLEY, CA 94941-4534
Document Number	0000004809
Instrument Date	Feb 19, 2019
Instrument	4809
Transaction Type	Transfer
Record Updated	Mar 1, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	3535 BRUNELL DR OAKLAND CA 946024106, OAKLAND, CA 94602-4106

Tax Assessment & Valuation

The 2025 property tax bill for 330 Ralston Ave was $15,375 with a homeowner's exemption.

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		$1,082,420 (+2%) Land $757,694 Building $324,726
2025	$15,375.00 Homeowner's exemption	$1,061,200 Land $742,840 Building $318,360
2023	$14,782.00 (+5.05%) Homeowner's exemption	$1,020,000 Land $714,000 Building $306,000
2022	$14,071.00

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

Flood

FEMA maps place 330 Ralston Ave in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1983.

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
Flood Insurance Cost	Premium on File median of 14 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	14 in force
Nearby Flood Claims	11 (1983–2017)
Claims Outside the SFHA	4 of 11
Most Recent Claim	Mar 2017 · river or lake flooding
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 3 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 330 Ralston Ave is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire Risk	Moderate above 52% of the US · lower than 69% of California
Wildfire Likelihood	0.1% 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 27 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

Cell Coverage

5G and 4G LTE (outdoors only)

Nearby Properties on Ralston Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures