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255 Ralston Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 255 Ralston Ave, Mill Valley, CA 94941

Property Summary

Property TypeSingle Family Home
Details5 bd · 5 ba · 3,918 sqft · built 1998
Lot Size1.23 acres (53,625 sqft)
Owner2 Individual Names on Record
Last Sale$2,050,000 (Dec 2018)
Tax Bill$29,935 (2025)
Deeds & MortgagesDec 2018 Sale
Dec 2018 Transfer
Flood ZoneZone X (minimal risk)
APN027-071-26

Property Details

APN / Parcel Number

Primary APN027-071-26

Interior

Bedrooms5 Beds
Full Baths5 Baths
Building Area3,918 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1998
Effective Year BuiltEffective 2002
Architectural StyleContemporary
Lot Area53,625 sqft
Garage Area484 sqft
Parking Spaces2 Parking Spaces
Deck Area707 sqft
Patio Area2,097 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address255 RALSTON AVE
CityMILL VALLEY
StateCA
Zip94941-4538
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLD /B3P7 PM
Legal SubdivisionWATER CO MAP 8 MILL VLY
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group5
Census Block5000
Census Tract127000

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address255 RALSTON AVE, MILL VALLEY, CA 94941-4538
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

DateDocument
Dec 17, 2018Grant Deed, Transfer
OLD REPUBLIC TITLE
Dec 17, 2018Quit Claim Deed, Transfer
OLD REPUBLIC TITLE

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 17, 2018 · Amount on Record
Deed SaleDec 17, 2018 · Amount on Record
Prior SaleNov 14, 2005 · Amount on Record
Deed Document Number201842713
Prior Transfer DateDec 3, 2018
Prior Transfer Doc0000042712
Record UpdatedOct 29, 2026

December 2018: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionMARIN CA
Recording DateDec 17, 2018
Property Address255 RALSTON AVE, MILL VALLEY, CA 94941-4538
Document Number0000042713
Instrument DateDec 12, 2018
Instrument42713
Transaction TypeTransfer
Record UpdatedDec 31, 2018
Title CompanyOLD REPUBLIC TITLE

Transaction

AmountAmount Recorded
Tax$2,255.00
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address255 RALSTON AVE MILL VALLEY CA 949414538, MILL VALLEY, CA 94941-4538

December 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionMARIN CA
Recording DateDec 17, 2018
Property Address255 RALSTON AVE, MILL VALLEY, CA 94941-4538
Document Number0000042712
Instrument DateDec 3, 2018
Instrument42712
Transaction TypeTransfer
Record UpdatedDec 31, 2018
Title CompanyOLD REPUBLIC TITLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address2857 PARADISE RD #3503 LAS VEGAS NV 891099046, 3503, LAS VEGAS, NV 89109-9046

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
MunicipalityMill Valley City
Elementary School DistrictMill Valley Elementary School District (KG - 08)
Secondary School DistrictTamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$2,332,510 (+2%) Land $1,194,700 Building $1,137,810
2025$29,935.00 (-4.09%) Homeowner's exemption$2,286,775 (+4.04%) Land $1,171,275 Building $1,115,500
2023$31,211.00 (+13.36%) Homeowner's exemption$2,197,989 Land $1,125,799 Building $1,072,190
2022$27,533.00

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

Flood

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 14 policies
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies14 in force
Nearby Flood Claims11 (1983–2017)
Claims Outside the SFHA4 of 11
Most Recent ClaimMar 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

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

Wildfire RiskModerate
above 47% of the US · lower than 72% of California
Wildfire Likelihood0.09% annual chance
ExposureDirect
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 SystemMARIN MUNICIPAL WATER DISTRICT
serves 188,116 people · EPA ID CA2110002
Water SourceSurface water
Last State InspectionAug 2023
LeadUnder 1 ppb (2019–2021)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 313 locations within half a mile, as of December 31, 2025

ProviderMax 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)

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