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125 Costanza Dr, Martinez, CA 94553 Property Records

Contra Costa County property record for 125 Costanza Dr, Martinez, CA 94553

Property Summary

Property TypeSingle Family Home
Details4 bd · 3.5 ba · 2,799 sqft · built 1987
Lot Size0.505 acres (22,000 sqft)
OwnerCompany Name on Record
Last Sale$373,000 (Jul 1998)
Tax Bill$7,764 (2025)
Deeds & MortgagesFeb 2019 Line of Credit
Mar 2017 Transfer
Flood ZoneZone X (minimal risk)
APN155-560-004-6

Property Details

APN / Parcel Number

Primary APN155-560-004-6
Alternative APN
  • 155-560-004

Interior

Bedrooms4 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms10 Rooms
Stories2 Stories
Building Area2,799 sqft Living Area
1st Floor Area1,458 sqft
2nd Floor Area1,341 sqft

Exterior

Year BuiltBuilt 1987
Effective Year BuiltEffective 1997
Lot Area22,000 sqft (0.505 acres)
Garage TypeAttached
Garage Area754 sqft
Parking Spaces3 Parking Spaces

Location & Zoning

Street Address125 COSTANZA DR
CityMARTINEZ
StateCA
Zip94553-6625
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT6758 L13
Legal SubdivisionSUBDIVISION 6758
Legal Tract6758
Legal Lot Number13
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3001
Census Tract321102

Owner

Source: Contra Costa County records, as of July 14, 2026

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

Owner of RecordCompany Name on Record
Mailing Address125 COSTANZA DR, MARTINEZ, CA 94553-6625
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Feb 15, 2019Deed of Trust, Mortgage · Line of Credit
UMPQUA BANK
Mar 3, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 16, 1998 · Amount on Record
Deed SaleJul 16, 1998 · Amount on Record
Deed Document Number1998164698
Prior Transfer DateJul 29, 1996
Prior Transfer Doc0000149986
Record UpdatedOct 29, 2026

February 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address125 COSTANZA DR, MARTINEZ, CA 94553-6625
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanySERVICELINK

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000021279
DateFeb 15, 2019
Instrument2019-021279
Lender
NameUMPQUA BANK
TypeBank
AddressWALNUT CREEK, CA 94596
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

March 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 3, 2017
Property Address125 COSTANZA DR, MARTINEZ, CA 94553-6625
Document Number0000038743
Instrument DateFeb 14, 2017
Instrument38743
Transaction TypeTransfer
Record UpdatedMar 20, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address125 COSTANZA DR MARTINEZ CA 945536625, MARTINEZ, CA 94553-6625

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$595,949 (+2%) Land $321,402 Building $274,547
2025$7,764.00 (+6.49%) Homeowner's exemption$584,264 (+4.04%) Land $315,100 Building $269,164
2023$7,291.00 (+1.67%) Homeowner's exemption$561,578 Land $302,865 Building $258,713
2022$7,171.00

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 X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims2 (1982–1995)
Claims Outside the SFHA1 of 2
Most Recent ClaimJan 1995 · Severe Winter Storms, Flooding, Landslides, Mud Flows

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 51% of the US · lower than 70% of California
Wildfire Likelihood0.1% annual chance
ExposureNone
beyond 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 SystemCONTRA COSTA WATER DISTRICT
serves 210,500 people · EPA ID CA0710003
Water SourceSurface water
Last State InspectionJan 2022
LeadUnder 1 ppb (2026–2028)
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 329 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
T-Mobile
Fixed Wireless		100 / 20
AT&T
Fixed Wireless · DSL		100 / 20

May also be available: Astound Broadband, Verizon.

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