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280 Obsidian Way, Hercules, CA 94547 Property Records

Contra Costa County property record for 280 Obsidian Way, Hercules, CA 94547

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 2,108 sqft · built 1988
Lot Size0.186 acres (8,120 sqft)
OwnerCompany Name on Record
Tax Bill$6,938 (2025)
Deeds & MortgagesFeb 2018 Transfer
Flood ZoneZone X (minimal risk)
APN407-074-002-4

Property Details

APN / Parcel Number

Primary APN407-074-002-4
Alternative APN
  • 407-074-002

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms10 Rooms
Stories2 Stories
Building Area2,108 sqft Living Area
1st Floor Area1,301 sqft
2nd Floor Area807 sqft

Exterior

Year BuiltBuilt 1988
Effective Year BuiltEffective 1988
Lot Area8,120 sqft (0.186 acres)
Garage TypeAttached
Garage Area675 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address280 OBSIDIAN WAY
CityHERCULES
StateCA
Zip94547-1729
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal DescriptionT6156A L0140 B
Legal SubdivisionSUBDIVISION 6156
Legal Tract6156A
Legal Lot Number0140
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group3
Census Block3001
Census Tract359204

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 RecordCompany Name on Record
Mailing Address280 OBSIDIAN WAY, HERCULES, CA 94547-1729
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateJan 25, 2018
Transfer Doc0000018430
Record UpdatedOct 29, 2026

February 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateFeb 6, 2018
Property Address280 OBSIDIAN WAY, HERCULES, CA 94547-1729
Document Number0000018430
Instrument DateJan 25, 2018
Instrument18430
Transaction TypeTransfer
Record UpdatedFeb 12, 2018

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address280 OBSIDIAN WAY HERCULES CA 945471729, HERCULES, CA 94547-1729

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$407,125 (+2%) Land $117,122 Building $290,003
2025$6,938.00 (+6.38%)$399,143 (+4.04%) Land $114,826 Building $284,317
2023$6,522.00 (+1.15%)$383,646 Land $110,368 Building $273,278
2022$6,448.00

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 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

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
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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

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

May also be available: T-Mobile, Unwired.

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