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3141 Hemlock St, Antioch, CA 94509 Property Records

Contra Costa County property record for 3141 Hemlock St, Antioch, CA 94509

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,058 sqft · built 1977
Lot Size0.072 acres (3,120 sqft)
Owner2 Individual Names on File
Last Sale$510,000 (Jun 2025)
Tax Bill$2,943 (2025)
Deeds & MortgagesJan 2026 Transfer
Jul 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN076-425-021-3

Property Details

APN / Parcel Number

Primary APN076-425-021-3
Alternative APN
  • 076-425-021

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories1 Story
Building Area1,058 sqft Living Area
Gross Area1,497 sqft
1st Floor Area1,058 sqft

Exterior

Year BuiltBuilt 1977
Effective Year BuiltEffective 1986
Architectural StyleRanch
Exterior MaterialStucco
Construction TypeFrame
Roof MaterialComposition Shingle
Lot Area3,120 sqft (0.072 acres)
Lot Dimensions80 ft deep x 39 ft wide
Garage TypeAttached
Garage Area439 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address3141 HEMLOCK ST
CityANTIOCH
StateCA
Zip94509-5211
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionT04252 L0242 B EX MR&FEE BLW 500FT
Legal SubdivisionSUBDIVISION 4252
Legal Tract04252
Legal Lot Number242
JurisdictionCONTRA COSTA CA
Township / Civil DivisionANTIOCH-PITTSBURG
Census Block Group2
Census Block2016
Census Tract307205

Owner

3141 Hemlock St is owned and occupied by two individuals who acquired it in October 2025.

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

Owner of Record2 Individual Names on File
Mailing Address3141 HEMLOCK ST, ANTIOCH, CA 94509-5211
OccupancyOwner Occupied
Owner TypeIndividual
VestingLife Tenant

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Jan 23, 2026Intrafamily Transfer, Transfer
Jul 27, 2020Deed of Trust, Mortgage · Conventional Mortgage
QUICKEN LNS

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJun 24, 2025 · Amount on File
Deed SaleJun 24, 2025 · Amount on File
Prior SaleAug 15, 2008 · Amount on File
Deed Document Number202563345
Last Transfer DateOct 29, 2025
Transfer Doc0000007414
Record UpdatedOct 29, 2026

January 2026: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateJan 23, 2026
Property Address3141 HEMLOCK ST, ANTIOCH, CA 94509-5211
Document Number0000007414
Map ReferenceMB 145 PG 7
Instrument DateOct 29, 2025
Instrument2026- 007414
Transaction TypeTransfer
Record UpdatedFeb 3, 2026

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address3141 HEMLOCK ST, ANTIOCH, CA 94509-5211

July 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address3141 HEMLOCK ST, ANTIOCH, CA 94509-5211
Document Number0000156953
Instrument DateJul 27, 2020
Transaction TypeMortgage
Record UpdatedAug 11, 2020
Title CompanyAMROCK TITLE CA INC

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address5488 SOUTHWOOD CT ANTIOCH CA 945317477, ANTIOCH, CA 94531-7477

Mortgage

Document Number0000156953
DateJul 30, 2020
Instrument156953
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
AddressDETROIT, MI 48226-1906
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term360 Months
DueJul 29, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 3141 Hemlock St was $2,943.

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$520,200 (+144.85%) Land $295,800 Building $224,400
2025$2,943.00$212,460 Land $32,183 Building $180,277
2023$2,779.00 (+1.42%)$204,212 Land $30,934 Building $173,278
2022$2,740.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 3141 Hemlock St in Zone X, an area of minimal flood risk.

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 Policies1 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

Wildfire risk around 3141 Hemlock St is low, with a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% 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 342 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
AT&T
DSL · Fiber in parts of the area		100 / 20

May also be available: T-Mobile, Verizon.

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