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604 Sonora Ct, Martinez, CA 94553 Property Records

Contra Costa County property record for 604 Sonora Ct, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 2,023 sqft · built 1962
Lot Size0.23 acres (10,000 sqft)
Owner2 Company Names on Record
Last Sale$500,000 (Apr 2002)
Tax Bill$9,552 (2025)
Deeds & MortgagesOct 2018 Mortgage
Dec 2020 Mortgage
Flood ZoneZone AE (high risk)
APN162-202-023-6

Property Details

APN / Parcel Number

Primary APN162-202-023-6
Alternative APN
  • 162-202-023

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area2,023 sqft Living Area
1st Floor Area2,023 sqft

Exterior

Year BuiltBuilt 1962
Effective Year BuiltEffective 1962
Lot Area10,000 sqft (0.23 acres)
Garage TypeAttached
Garage Area492 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address604 SONORA CT
CityMARTINEZ
StateCA
Zip94553-4424
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR175
Legal DescriptionTRACT 2402 LOT 15
Legal Subdivision2402 ALHAMBRA VLY ORCHARD
Legal Tract2402
Legal Lot Number15
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3007
Census Tract321103

Owner

Source: Contra Costa County records, as of July 14, 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 Record2 Company Names on Record
Mailing Address604 SONORA CT, MARTINEZ, CA 94553-4424
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

DateDocument
Oct 25, 2018Deed of Trust, Mortgage · Conventional Mortgage
LENOX FINANCIAL MORTGAGE CORP
Dec 2, 2020Deed of Trust, Mortgage · Conventional Mortgage
QUICKEN LOANS LLC

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleApr 2, 2002 · Amount on Record
Deed SaleApr 2, 2002 · Amount on Record
Deed Document Number2002115279
Last Transfer DateFeb 7, 2025
Transfer Doc0000012210
Record UpdatedSep 20, 2026

October 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address604 SONORA CT, MARTINEZ, CA 94553-4424
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyWFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000168880
DateOct 25, 2018
Instrument2018-168880
Lender
NameLENOX FINANCIAL MORTGAGE CORP
TypeMortgage Company
AddressSANTA ANA, CA 92707
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 1, 2048

December 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address604 SONORA CT, MARTINEZ, CA 94553-4424
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyAMROCK INC

Transferred To (Grantee/Buyer)

NameVerified Name
Address604 SONORA CT, MARTINEZ, CA 94553-4424

Mortgage

Document Number0000293973
DateDec 2, 2020
Instrument2020-293973
Lender
NameQUICKEN LOANS LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueDec 1, 2050

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$753,248 (+2%) Land $379,713 Building $373,535
2025$9,552.00 (+6.51%) Homeowner's exemption$738,479 (+4.04%) Land $372,268 Building $366,211
2023$8,968.00 (+1.69%) Homeowner's exemption$709,805 Land $357,813 Building $351,992
2022$8,819.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone AE
high risk
100-Year FloodplainYes
1% annual chance
FloodwayYes
Base Flood ElevationVaries along the reach; see FIRM
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on Record
median of 27 policies
Nearby Flood Policies27 in force
Nearby Flood Claims21 (1982–2023)
Claims Outside the SFHA3 of 21
Most Recent ClaimJan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Winter Storms, Flooding, Landslides, And Mudslides, Jan 2023 · 2 claims
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 4 claims
  • Severe Winter Storms, Flooding, Landslides, Mud Flows, Jan 1995 · 4 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 57% of the US · lower than 65% of California
Wildfire Likelihood0.2% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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 SystemCITY OF MARTINEZ
serves 31,015 people · EPA ID CA0710006
Water SourcePurchased surface water from CONTRA COSTA WATER DISTRICT
Last State InspectionOct 2025
LeadUnder 1 ppb (2023–2025)
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 256 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
AT&T
Fixed Wireless · DSL · Fiber in parts of the area		100 / 20

May also be available: Astound Broadband, T-Mobile, Unwired, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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