618 Ralston Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 618 Ralston Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 484 sqft · built 1909
Lot Size	0.124 acres (5,390 sqft)
Owner	2 Trust Names on File
Tax Bill	$6,579 (2025)
Deeds & Mortgages	Nov 2021 Transfer Aug 2020 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`027-022-05`

Property Details

APN / Parcel Number

Primary APN	`027-022-05`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Building Area	484 sqft Living Area
Basement Area	90 sqft

Exterior

Year Built	Built 1909
Effective Year Built	Effective 1920
Architectural Style	Contemporary
Lot Area	5,390 sqft (0.124 acres)
Deck Area	291 sqft
Patio Area	291 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	618 RALSTON AVE
City	MILL VALLEY
State	CA
Zip	94941-1068
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	HILLSIDE
Legal Lot Number	3,4
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	5
Census Block	5002
Census Tract	127000

Owner

618 Ralston Ave is held in a trust since February 1995.

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

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

Owner of Record	2 Trust Names on File
Mailing Address	610 RALSTON AVE, MILL VALLEY, CA 94941-1068
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 8, 2021	Intrafamily Transfer, Transfer
Aug 31, 2020	Correction Deed, Transfer FIRST AMERICAN TITLE
Aug 24, 2020	Deed of Trust, Mortgage · Conventional Mortgage REDWOOD CU
May 1, 2020	Deed of Trust, Mortgage QUICKEN LNS
Jun 5, 2020	Quit Claim Deed NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Feb 8, 1995
Transfer Doc	0000007842
Record Updated	Oct 29, 2026

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Nov 8, 2021
Property Address	618 RALSTON AVE, MILL VALLEY, CA 94941-1068
Document Number	0000067324
Map Reference	VOL 6 PG 50
Instrument Date	Nov 7, 2021
Instrument	2021-0067324
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 Trust
Address	610 RALSTON AVE, MILL VALLEY, CA 94941-1068

August 2020: Correction Deed, Transfer

Document Type	Correction Deed
Jurisdiction	MARIN CA
Recording Date	Aug 31, 2020
Property Address	618 RALSTON AVE, MILL VALLEY, CA 94941-1068
Document Number	0000040090
Instrument Date	Aug 25, 2020
Instrument	40090
Transaction Type	Transfer
Record Updated	Sep 18, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	610 RALSTON AVE MILL VALLEY CA 949411068, MILL VALLEY, CA 94941-1068

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	618 RALSTON AVE, MILL VALLEY, CA 94941-1068
Document Number	0000040091
Instrument Date	Aug 24, 2020
Transaction Type	Mortgage
Record Updated	Sep 22, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	610 RALSTON AVE MILL VALLEY CA 949411068, MILL VALLEY, CA 94941-1068

Mortgage

Document Number	0000040091
Date	Aug 31, 2020
Instrument	40091

Lender

Name	REDWOOD CU
Type	Credit Union
Address	SANTA ROSA, CA 95403

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	300 Months
Due	Aug 30, 2045

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	618 RALSTON AVE, MILL VALLEY, CA 94941-1068
Document Number	0000017688
Instrument Date	May 1, 2020
Transaction Type	Mortgage
Record Updated	May 20, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	610 RALSTON AVE MILL VALLEY CA 949411068, MILL VALLEY, CA 94941-1068

Mortgage

Document Number	0000017688
Date	May 6, 2020
Instrument	17688

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount on Record
Term	360 Months
Due	May 5, 2050

June 2020: Quit Claim Deed

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Jun 5, 2020
Property Address	618 RALSTON AVE, MILL VALLEY, CA 94941-1068
Document Number	0000022661
Instrument Date	Apr 4, 2020
Instrument	22661
Record Updated	Jun 17, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	610 RALSTON AVE MILL VALLEY CA 949411068, MILL VALLEY, CA 94941-1068

Tax Assessment & Valuation

The 2025 property tax bill for 618 Ralston Ave was $6,579.

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		$271,032 (+2%) Land $207,641 Building $63,391
2025	$6,579.00	$265,718 Land $203,570 Building $62,148
2023	$6,303.00 (-28.44%)	$255,401 Land $195,666 Building $59,735
2022	$8,808.00

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

Flood

FEMA maps place 618 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 618 Ralston Ave is moderate, ranking above 56% 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 56% of the US · lower than 67% 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 62 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

May also be available: Unwired.

Cell Coverage

4G LTE (outdoors only), no 5G reported

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