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545 Black Walnut Pl, Hercules, CA 94547 Property Records

Contra Costa County property record for 545 Black Walnut Pl, Hercules, CA 94547

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 2,095 sqft · built 2003
Lot Size0.077 acres (3,350 sqft)
OwnerTrust Name on File
Last Sale$457,000 (Mar 2003)
Tax Bill$10,187 (2025)
Deeds & MortgagesJul 2019 Transfer
Flood ZoneZone X (minimal risk)
APN406-540-057-6

Property Details

APN / Parcel Number

Primary APN406-540-057-6
Alternative APN
  • 406-540-057

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms8 Rooms
Stories2 Stories
Building Area2,095 sqft Living Area
1st Floor Area970 sqft
2nd Floor Area1,125 sqft

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Lot Area3,350 sqft (0.077 acres)
Garage TypeAttached
Garage Area395 sqft
Parking Spaces1 Parking Space

Location & Zoning

Street Address545 BLACK WALNUT PL
CityHERCULES
StateCA
Zip94547-2301
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT8630 L21
Legal SubdivisionSUBDIVISION 8630
Legal Tract8630
Legal Lot Number21
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group1
Census Block1001
Census Tract359203

Owner

545 Black Walnut Pl is owner-occupied and held in a trust since July 2019.

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

Owner of RecordTrust Name on File
Mailing Address545 BLACK WALNUT PL, HERCULES, CA 94547-2301
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

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

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMar 27, 2003 · Amount on File
Deed SaleMar 27, 2003 · Amount on File
Deed Document Number2003139410
Last Transfer DateJul 2, 2019
Transfer Doc0000105123
Record UpdatedOct 29, 2026

July 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 9, 2019
Property Address545 BLACK WALNUT PL, HERCULES, CA 94547-2301
Document Number0000105123
Instrument DateJul 2, 2019
Instrument105123
Transaction TypeTransfer
Record UpdatedJul 17, 2019
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address545 BLACK WALNUT PL HERCULES CA 945472301, HERCULES, CA 94547-2301

Tax Assessment & Valuation

The 2025 property tax bill for 545 Black Walnut Pl was $10,187 with a homeowner's exemption.

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$674,364 (+2%) Land $251,128 Building $423,236
2025$10,187.00 Homeowner's exemption$661,142 Land $246,204 Building $414,938
2023$9,631.00 (+1.12%) Homeowner's exemption$635,471 Land $236,645 Building $398,826
2022$9,524.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 545 Black Walnut Pl in Zone X, an area of minimal flood risk.

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

Wildfire risk around 545 Black Walnut Pl is moderate, ranking above 40% of the US, with a 0.07% annual chance of wildfire.

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

Wildfire RiskModerate
above 40% of the US · lower than 76% of California
Wildfire Likelihood0.07% annual chance
ExposureDirect
burnable vegetation

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

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
Starlink
Satellite		280 / 30
T-Mobile
Fixed Wireless		100 / 20
AT&T
DSL		100 / 20

May also be available: Unwired.

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