263 Richardson Dr, Mill Valley, CA 94941 Property Records

Marin County property record for 263 Richardson Dr, Mill Valley, CA 94941

Property Summary

Property TypeSingle Family Home
Details2 bd · 3 ba · 2,234 sqft · built 1955
Lot Size0.238 acres (10,355 sqft)
OwnerIndividual Name on Record
Last Sale$3,250,000 (Jun 2026)
Tax Bill$8,472 (2025)
Deeds & MortgagesJun 2026 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN043-232-13

Property Details

APN / Parcel Number

Primary APN043-232-13

Interior

Bedrooms2 Beds
Full Baths3 Baths
Building Area2,234 sqft Living Area
Basement Area282 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 1955
Architectural StyleContemporary
Lot Area10,355 sqft (0.238 acres)
Garage Area440 sqft
Parking Spaces2 Parking Spaces
Deck Area480 sqft
Patio Area480 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address263 RICHARDSON DR
CityMILL VALLEY
StateCA
Zip94941-2518
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 717
Legal SubdivisionSTRAWBERRY MANOR 07
Legal Lot Number717
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group2
Census Block2000
Census Tract125000

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 RecordIndividual Name on Record
Mailing Address263 RICHARDSON DR, MILL VALLEY, CA 94941-2518
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJun 5, 2026 · Amount on Record
Deed SaleJun 5, 2026 · Amount on Record
Prior SaleJun 2, 2025 · Amount on Record
Deed Document Number202616648
Prior Transfer DateDec 12, 2006
Prior Transfer Doc0000078560
Record UpdatedSep 20, 2026

June 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionMARIN CA
Recording DateJun 5, 2026
Property Address263 RICHARDSON DR, MILL VALLEY, CA 94941-2518
Document Number0000016648
Instrument DateJun 1, 2026
Instrument202616648
Transaction TypeTransfer
Record UpdatedJun 18, 2026
Title CompanyOLD REPUBLIC TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$361,075.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address263 RICHARDSON DR, MILL VALLEY, CA 94941-2518

Mortgage

Document Number0000016649,
DateJun 5, 2026
Instrument202616649
Lender
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueJul 1, 2056
Interest
Rate TypeAdjustable Rate
Rate6%
Initial TypeAdjustable Rate
AdjustableAdjustable Rate Rider
Max Rate-1%

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
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$2,844,277 (+449.15%) Land $1,500,065 Building $1,344,212
2025$8,472.00 (+27.09%)$517,940 (+4.04%) Land $203,114 Building $314,826
2023$6,666.00 (-0.92%) Homeowner's exemption$497,831 Land $195,228 Building $302,603
2022$6,728.00

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

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
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies3 in force
Nearby Flood Claims2 (1982–1986)
Most Recent ClaimFeb 1986 · Severe Storms & Flooding

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 RiskNot rated
no burnable land within ember reach

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 459 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Unwired
Fixed Wireless
300 / 25
Verizon
Fixed Wireless
300 / 20
Etheric Networks
Fixed Wireless
250 / 100
T-Mobile
Fixed Wireless
100 / 20
AT&T
Fixed Wireless · DSL · Fiber in parts of the area
100 / 20

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