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331 Allen St, Martinez, CA 94553 Property Records

Contra Costa County property record for 331 Allen St, Martinez, CA 94553 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,986 sqft · built 1937
Lot Size0.138 acres (6,000 sqft)
OwnerIndividual Name on File
Last Sale$350,000 (Dec 2008)
Tax Bill$6,258 (2025)
Deeds & MortgagesSep 2021 Transfer
Sep 2021 Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APN372-281-008-6

Property Details

APN / Parcel Number

Primary APN372-281-008-6
Alternative APN
  • 372-281-008

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories1 Story
Building Area1,986 sqft Living Area
1st Floor Area1,446 sqft
Basement Area540 sqft

Exterior

Year BuiltBuilt 1937
Effective Year BuiltEffective 1937
Lot Area6,000 sqft (0.138 acres)
Garage TypeAttached
Garage Area220 sqft
Parking Spaces1 Parking Space

Location & Zoning

Street Address331 ALLEN ST
CityMARTINEZ
StateCA
Zip94553-2655
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionORIG SURVEY MARTINEZ POR LOTS 7 & 8 BLK 79
Legal SubdivisionMARTINEZ
Legal Block79
Legal Lot Number7,8
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1007
Census Tract318000

Owner

Source: Contra Costa County records · APN 372-281-008-6

Assessment roll updated July 14, 2026 · Last verified July 2026

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

Owner of RecordIndividual Name on File
Mailing Address331 ALLEN ST, MARTINEZ, CA 94553-2655
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Sep 08, 2021Intrafamily Transfer, Transfer
FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
Sep 08, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
FIRST REPUBLIC BANK
Sep 08, 2021Affidavit of Death of Joint Tenant, Transfer
FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleDec 02, 2008 · Amount on Record
Deed SaleDec 02, 2008 · Amount on Record
Prior SaleAug 29, 2008 · Amount on Record
Deed Document Number2008259637
Last Transfer DateAug 27, 2021
Transfer Doc0000250003
Record UpdatedSep 20, 2026

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 08, 2021
Property Address331 ALLEN ST, MARTINEZ, CA 94553-2655
Document Number0000250002
Instrument DateAug 27, 2021
Instrument2021-250002
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyFIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address331 ALLEN ST, MARTINEZ, CA 94553-2655

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 08, 2021
Property Address331 ALLEN ST, MARTINEZ, CA 94553-2655
Document Number0000250003
Instrument DateAug 27, 2021
Instrument2021-250003
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyFIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address331 ALLEN ST, MARTINEZ, CA 94553-2655

Mortgage

Document Number0000250004
DateSep 08, 2021
Instrument2021-250004
Lender
NameFIRST REPUBLIC BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 01, 2051

September 2021: Affidavit of Death of Joint Tenant, Transfer

Document TypeAffidavit of Death of Joint Tenant
JurisdictionCONTRA COSTA CA
Recording DateSep 08, 2021
Property Address331 ALLEN ST, MARTINEZ, CA 94553-2655
Document Number0000250005
Instrument DateJul 28, 2021
Instrument2021-250005
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyFIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
AddressPO BOX 373, WHITETHORN, CA 95589-0373

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityMartinez City
Unified School DistrictMartinez Unified School District (KG - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$459,579 (+2%) Land $302,099 Building $157,480
2025$6,258.00 (+6.46%)$450,569 (+4.04%) Land $296,176 Building $154,393
2023$5,878.00 (+1.61%)$433,075 Land $284,676 Building $148,399
2022$5,785.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133180001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Nearest Special Flood Hazard AreaZone AO, within 100 ft
Flood Insurance CostPremium on Record
median of 23 individual NFIP policies nearby
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies23 in force
Nearby Flood Claims12 (1980–2022)
Claims Outside the SFHA3 of 12
Most Recent ClaimDec 2022, other causes, Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims By Storm
  • Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 5 claims
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims

Wildfire

Wildfire RiskModerate
above 54% of the US · above 32% of California
Wildfire LikelihoodAbout 1 in 752 per year
ExposureIndirect
within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 358 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Radiate HoldingsFiber1,500 / 1,500
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TFixed Wireless100 / 20
AT&TDSL100 / 20

May also be available at this address: AT&T, Unwired, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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