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139 Heather Ave, Hercules, CA 94547 Property Records

Contra Costa County property record for 139 Heather Ave, Hercules, CA 94547

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,341 sqft · built 1976
Lot Size0.153 acres (6,666 sqft)
Owner2 Individual Names on File
Last Sale$756,500 (Jul 2025)
Tax Bill$6,231 (2025)
Deeds & MortgagesMay 2021 Transfer
May 2021 Transfer
Flood ZoneZone X (minimal risk)
APN406-310-028-5

Property Details

APN / Parcel Number

Primary APN406-310-028-5
Alternative APN
  • 406-310-028

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,341 sqft Living Area
1st Floor Area1,341 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1976
Effective Year BuiltEffective 1976
Architectural StyleRanch
Exterior MaterialStucco
Roof MaterialComposition Shingle
Lot Area6,666 sqft (0.153 acres)
Garage TypeAttached
Garage Area452 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address139 HEATHER AVE
CityHERCULES
StateCA
Zip94547-1237
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionTRACT 4745 LOT 28
Legal SubdivisionSUBDIVISION 4745
Legal Tract4745
Legal Lot Number28
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group1
Census Block1007
Census Tract359203

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 Record2 Individual Names on File
Mailing Address139 HEATHER AVE, HERCULES, CA 94547-1237
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

DateDocument
May 20, 2021Intrafamily Transfer, Transfer
May 20, 2021Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJul 3, 2025 · Amount on Record
Deed SaleJul 3, 2025 · Amount on Record
Deed Document Number202567117
Prior Transfer DateDec 24, 2019
Prior Transfer Doc0000150317
Record UpdatedSep 20, 2026

May 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMay 20, 2021
Property Address139 HEATHER AVE, HERCULES, CA 94547-1237
Document Number0000150316
Map ReferenceMB 179 PG 18
Instrument DateDec 24, 2019
Instrument2021-150316
Transaction TypeTransfer
Record UpdatedNov 3, 2022

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
Address1123 UPPER HAPPY VALLEY RD, LAFAYETTE, CA 94549-2807

May 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMay 20, 2021
Property Address139 HEATHER AVE, HERCULES, CA 94547-1237
Document Number0000150317
Map ReferenceMB 179 PG 18
Instrument DateDec 24, 2019
Instrument2021-150317
Transaction TypeTransfer
Record UpdatedJun 7, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address1123 UPPER HAPPY VALLEY RD, LAFAYETTE, CA 94549-2807

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityHercules City
Unified School DistrictWest Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$756,500 (+116.42%) Land $486,500 Building $270,000
2025$6,231.00 (+6.64%)$349,559 (+4.04%) Land $150,860 Building $198,699
2023$5,843.00 (+1.16%)$335,986 Land $145,002 Building $190,984
2022$5,776.00

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

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 64% of the US · lower than 79% of California
Wildfire Likelihood0.05% annual chance
ExposureIndirect
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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 494 locations within half a mile, as of December 31, 2025

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

May also be available: Unwired.

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