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4493 Half Dome St, Antioch, CA 94531 Property Records

Contra Costa County property record for 4493 Half Dome St, Antioch, CA 94531

Property Summary

Property TypeSingle Family Home
Details6 bd · 4.5 ba · 3,859 sqft · built 2013
Lot Size0.152 acres (6,620 sqft)
Owner2 Individual Names on Record
Last Sale$571,000 (Dec 2013)
Tax Bill$8,607 (2025)
Deeds & MortgagesNov 2020 Mortgage
Aug 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN052-540-021-4

Property Details

APN / Parcel Number

Primary APN052-540-021-4
Alternative APN
  • 052-540-021

Interior

Bedrooms6 Beds
Full Baths4.5 Baths
Half Baths1 Half Bath
Total Rooms13 Rooms
Stories2 Stories
Building Area3,859 sqft Living Area
1st Floor Area2,095 sqft
2nd Floor Area1,764 sqft

Exterior

Year BuiltBuilt 2013
Effective Year BuiltEffective 2013
Lot Area6,620 sqft (0.152 acres)
Garage TypeAttached
Garage Area799 sqft
Parking Spaces3 Parking Spaces

Location & Zoning

Street Address4493 HALF DOME ST
CityANTIOCH
StateCA
Zip94531-7188
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT8851 L268
Legal SubdivisionNELSON RANCH 3 SUB 8851
Legal Tract8851
Legal Lot Number268
JurisdictionCONTRA COSTA CA
Township / Civil DivisionANTIOCH-PITTSBURG
Census Block Group1
Census Block1017
Census Tract308002

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 Address4493 HALF DOME ST, ANTIOCH, CA 94531-7188
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Nov 17, 2020Intrafamily Transfer, Transfer · Conventional Mortgage
MK LENDING CORP
Aug 3, 2020Deed of Trust, Mortgage · Conventional Mortgage
WILMINGTON TR NA

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 27, 2013 · Amount on Record
Deed SaleDec 27, 2013 · Amount on Record
Deed Document Number2013295482
Prior Transfer DateDec 26, 2013
Prior Transfer Doc0000295483
Record UpdatedOct 29, 2026

November 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateNov 17, 2020
Property Address4493 HALF DOME ST, ANTIOCH, CA 94531-7188
Document Number0000275990
Map ReferenceMB 494 PG 18
Instrument DateNov 7, 2020
Instrument2020-275990
Transaction TypeTransfer
Record UpdatedNov 3, 2022
Title CompanyOLD REPUBLIC 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
RelationshipJoint Tenants
Address4493 HAW DOME STREET, ANTIOCH, CA 94531

Mortgage

Document Number0000275991
DateNov 17, 2020
Instrument2020-275991
Lender
NameMK LENDING CORP
TypeMortgage Company
AddressNORTH HOLLYWOOD, CA 91601
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term241 Months
DueDec 1, 2040

August 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address4493 HALF DOME ST, ANTIOCH, CA 94531-7188
Document Number0000165032
Instrument DateAug 3, 2020
Transaction TypeMortgage
Record UpdatedAug 26, 2020
Title CompanyNOT AVAILABLE

Transaction

Additional
  • Multiple Parcels

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address90 MATAWAN RD #5TH MATAWAN NJ 077472623, 5TH, MATAWAN, NJ 07747-2623
InvestorPossibly a Property Investor

Mortgage

Document Number0000165032
DateAug 7, 2020
Instrument165032
Lender
NameWILMINGTON TR NA
AddressWILMINGTON, DE 19890-1600
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term60 Months
DueAug 6, 2025

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$713,454 (+2%) Land $81,269 Building $632,185
2025$8,607.00 (+4.75%)$699,466 (+4.04%) Land $79,676 Building $619,790
2023$8,217.00 (+1.59%)$672,307 Land $76,583 Building $595,724
2022$8,088.00

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 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 RiskLow
lower than 99.8% of the US · lower than 99.8% of California
Wildfire LikelihoodUnder 0.01% 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 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 550 locations within half a mile, as of December 31, 2025

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

May also be available: AT&T.

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