1812 Trinity Ct, Antioch, CA 94509 Property Records

Contra Costa County property record for 1812 Trinity Ct, Antioch, CA 94509

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,810 sqft · built 1974
Lot Size0.164 acres (7,125 sqft)
OwnerCompany Name on File
Last Sale$253,000 (May 2001)
Tax Bill$4,781 (2025)
Deeds & MortgagesFeb 2026 Line of Credit
Jan 2021 Mortgage
+ 3 more
Flood ZoneZone X (minimal risk)
APN051-272-020-2

Property Details

APN / Parcel Number

Primary APN051-272-020-2
Alternative APN
  • 051-272-020

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area1,810 sqft Living Area
1st Floor Area1,810 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1974
Effective Year BuiltEffective 1975
Architectural StyleRanch
Exterior MaterialWood
Construction TypeFrame
Roof MaterialWood Shingle
Lot Area7,125 sqft (0.164 acres)
Garage TypeAttached
Garage Area484 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address1812 TRINITY CT
CityANTIOCH
StateCA
Zip94509-2131
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionTRACT 4231 LOT 85 EX MR
Legal SubdivisionHILLSDALE SUB 4231
Legal Tract4231
Legal Lot Number85
JurisdictionCONTRA COSTA CA
Township / Civil DivisionANTIOCH-PITTSBURG
Census Block Group1
Census Block1001
Census Tract306002

Owner

Source: Contra Costa County assessment roll, 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 File
Mailing Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Feb 23, 2026Deed of Trust, Mortgage · Line of Credit
BAC COMMUNITY BANK
Jan 6, 2021Deed of Trust, Mortgage · Conventional Mortgage
HOMEBRIDGE FINANCIAL SERVICES INC
Aug 27, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
UNITED WHOLESALE MORTGAGE
Feb 27, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY
Oct 15, 2019Deed of Trust, Mortgage · Conventional with PMI
LOANDEPOT.COM LLC

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleMay 22, 2001 · Amount on Record
Deed SaleMay 22, 2001 · Amount on Record
Prior SaleSep 11, 1998 · Amount on Record
Deed Document Number2001137401
Last Transfer DateAug 19, 2021
Transfer Doc0000241676
Record UpdatedSep 20, 2026

February 2026: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Transaction TypeMortgage
Record UpdatedMar 5, 2026
Title CompanyOLD REPUBLIC TITLE, OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name
Address1812 TRINITY CT, ANTIOCH, CA 94509-2131

Mortgage

Document Number0000017525
DateFeb 23, 2026
Instrument2026- 017525
Lender
NameBAC COMMUNITY BANK
TypeBank
Address517 E WEBER AVE, STOCKTON, CA 95202
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

January 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanySTEWART TITLE GUARANTY CO

Transferred To (Grantee/Buyer)

NameVerified Name
Address1812 TRINITY CT, ANTIOCH, CA 94509-2131

Mortgage

Document Number0000004057
DateJan 6, 2021
Instrument2021-004057
Lender
NameHOMEBRIDGE FINANCIAL SERVICES INC
TypeMortgage Company
AddressISELIN, NJ 08830
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term240 Months
DueJan 1, 2041

August 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateAug 27, 2021
Property Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Document Number0000241676
Map ReferenceMB 145 PG 1-3
Instrument DateAug 19, 2021
Instrument2021-241676
Transaction TypeTransfer
Record UpdatedJun 7, 2023
Title CompanySTEWART TITLE GUARANTY CO

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address1812 TRINITY CT, ANTIOCH, CA 94509-2131

Mortgage

Document Number0000241677
DateAug 27, 2021
Instrument2021-241677
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueSep 1, 2036

February 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateFeb 27, 2020
Property Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Document Number0000037136
Instrument DateFeb 11, 2020
Instrument37136
Transaction TypeTransfer
Record UpdatedMar 16, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address1812 TRINITY CT ANTIOCH CA 945092131, ANTIOCH, CA 94509-2131

October 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address1812 TRINITY CT, ANTIOCH, CA 94509-2131
Document Number0000192849
Instrument DateOct 15, 2019
Transaction TypeMortgage
Record UpdatedNov 8, 2019
Title CompanyAMERICAN COAST TITLE COMPANY, AMERICAN COAST TITLE CO.

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSole Owner
Address1812 TRINITY CT ANTIOCH CA 945092131, ANTIOCH, CA 94509-2131

Mortgage

Document Number0000192849
DateOct 31, 2019
Instrument192849
Lender
NameLOANDEPOT.COM LLC
TypeFunding / Finance Company
AddressFOOTHILL RANCH, CA 92610
Agreement
TypeConventional with PMI
AmountAmount Recorded
Term240 Months
DueOct 30, 2039

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$383,767 (+2%) Land $113,247 Building $270,520
2025$4,781.00 (+5.26%)$376,243 (+4.04%) Land $111,027 Building $265,216
2023$4,542.00 (+1.57%)$361,634 Land $106,716 Building $254,918
2022$4,472.00

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.8% of the US · lower than 99.8% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

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

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL
5,000 / 5,000
Xfinity
Cable
2,000 / 250
Unwired
Fixed Wireless
300 / 25

May also be available: Verizon.

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