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4520 Thoroughbred Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 4520 Thoroughbred Ct, Antioch, CA 94531

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 3,059 sqft · built 1999
Lot Size0.269 acres (11,713 sqft)
Owner2 Individual Names on Record
Last Sale$335,000 (Oct 2013)
Tax Bill$4,951 (2025)
Deeds & MortgagesApr 2021 Mortgage
Flood ZoneZone X (minimal risk)
APN053-570-035-5

Property Details

APN / Parcel Number

Primary APN053-570-035-5
Alternative APN
  • 053-570-035

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms10 Rooms
Stories2 Stories
Building Area3,059 sqft Living Area
1st Floor Area1,813 sqft
2nd Floor Area1,246 sqft

Exterior

Year BuiltBuilt 1999
Effective Year BuiltEffective 2000
Lot Area11,713 sqft (0.269 acres)
Garage TypeAttached
Garage Area626 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address4520 THOROUGHBRED CT
CityANTIOCH
StateCA
Zip94531-9316
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT7459 L560
Legal SubdivisionSUBDIVISION 7459
Legal Tract7459
Legal Lot Number560
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group4
Census Block4007
Census Tract302009

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 Record2 Individual Names on Record
Mailing Address5309 VIA PISA, NEWBURY PARK, CA 91320-7007
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 29, 2013 · Amount on Record
Deed SaleOct 29, 2013 · Amount on Record
Prior SaleDec 20, 2012 · Amount on Record
Deed Document Number2013259128
Last Transfer DateApr 14, 2021
Transfer Doc0000117129
Record UpdatedOct 29, 2026

April 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateApr 19, 2021
Property Address4520 THOROUGHBRED CT, ANTIOCH, CA 94531-9316
Document Number0000117129
Map ReferenceMB 408 PG 23
Instrument DateApr 14, 2021
Instrument2021-117129
Transaction TypeTransfer
Record UpdatedMay 30, 2023
Title CompanyFIRST 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
RelationshipCommunity Property with Right of Survivorship
Address5309 VIA PISA, NEWBURY PARK, CA 91320-7007

Mortgage

Document Number0000117130
DateApr 19, 2021
Instrument2021-117130
Lender
NameCMG MORTGAGE INC
TypeMortgage Company
AddressSAN RAMON, CA 94583
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMay 1, 2051

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityAntioch City
Unified School DistrictAntioch Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$406,361 (+2%) Land $89,395 Building $316,966
2025$4,951.00 (+6.13%)$398,394 (+4.04%) Land $87,643 Building $310,751
2023$4,665.00 (+1.5%)$382,926 Land $84,241 Building $298,685
2022$4,596.00

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
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies2 in force

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 SystemCITY OF ANTIOCH
serves 116,781 people · EPA ID CA0710001
Water SourceSurface water
Last State InspectionJan 2024
LeadUnder 1 ppb (2022–2024)
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 566 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
DSL · Fiber, Fixed Wireless in parts of the area		100 / 20

May also be available: Verizon.

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