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102 W 9th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 102 W 9th St, Antioch, CA 94509

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 912 sqft · built 1937
Lot Size0.069 acres (3,000 sqft)
Owner2 Individual Names on Record
Last Sale$299,000 (Jun 2016)
Tax Bill$4,526 (2025)
Deeds & MortgagesSep 2021 Mortgage
Flood ZoneZone X (minimal risk)
APN066-186-001-5

Property Details

APN / Parcel Number

Primary APN066-186-001-5
Alternative APN
  • 066-186-001

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms4 Rooms
Stories1 Story
Building Area912 sqft Living Area
1st Floor Area912 sqft

Exterior

Year BuiltBuilt 1937
Effective Year BuiltEffective 2016
Lot Area3,000 sqft (0.069 acres)
Garage TypeAttached
Garage Area198 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address102 W 9TH ST
CityANTIOCH
StateCA
Zip94509-1736
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR3
Legal DescriptionTOWN OF ANTIOCH S 60.5 FT OF LOT 12 BLK 97
Legal SubdivisionANTIOCH
Legal Block97
Legal Lot Number12
JurisdictionCONTRA COSTA CA
Township / Civil DivisionANTIOCH-PITTSBURG
Census Block Group1
Census Block1016
Census Tract305000

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 Address102 W 9TH ST, ANTIOCH, CA 94509-1736
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJun 10, 2016 · Amount on Record
Deed SaleJun 10, 2016 · Amount on Record
Prior SaleJun 10, 2016
Deed Document Number2016113586
Prior Transfer DateJun 7, 2016
Prior Transfer Doc0000113585
Record UpdatedOct 29, 2026

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 3, 2021
Property Address102 W 9TH ST, ANTIOCH, CA 94509-1736
Document Number0000248163
Instrument DateAug 30, 2021
Instrument2021-248163
Transaction TypeTransfer
Record UpdatedNov 3, 2022
Title CompanyCHICAGO 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
Address102 W 9TH ST, ANTIOCH, CA 94509-1736

Mortgage

Document Number0000248164
DateSep 3, 2021
Instrument2021-248164
Lender
NameHOMEBRIDGE FINANCIAL SERVICES INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 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$361,026 (+2%) Land $209,733 Building $151,293
2025$4,526.00 (+5.33%)$353,948 (+4.04%) Land $205,621 Building $148,327
2023$4,297.00 (+1.54%)$340,206 Land $197,638 Building $142,568
2022$4,232.00

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

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL in parts of the area		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
T-Mobile
Fixed Wireless		100 / 20

May also be available: Verizon.

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