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455 Obsidian Way, Clayton, CA 94517 Property Records

Contra Costa County property record for 455 Obsidian Way, Clayton, CA 94517

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 2,981 sqft · built 1995
Lot Size0.185 acres (8,050 sqft)
Owner2 Company Names on Record
Last Sale$1,075,000 (Apr 2018)
Tax Bill$15,146 (2025)
Deeds & MortgagesApr 2018 Sale
Mar 2017 Transfer
Flood ZoneZone X (minimal risk)
APN118-570-042-2

Property Details

APN / Parcel Number

Primary APN118-570-042-2
Alternative APN
  • 118-570-042

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms10 Rooms
Stories2 Stories
Building Area2,981 sqft Living Area
1st Floor Area1,472 sqft
2nd Floor Area1,509 sqft

Exterior

Year BuiltBuilt 1995
Effective Year BuiltEffective 2005
Lot Area8,050 sqft (0.185 acres)
Garage TypeAttached
Garage Area708 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address455 OBSIDIAN WAY
CityCLAYTON
StateCA
Zip94517-2011
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT7257 L42
Legal SubdivisionEAGLE PEAK SUB 7257
Legal Tract7257
Legal Lot Number42
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1011
Census Tract355307

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 Company Names on Record
Mailing Address1311 DAVID LN, CONCORD, CA 94518-3842
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Apr 26, 2018Grant Deed, Transfer
CHICAGO TITLE COMPANY
Mar 31, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleApr 26, 2018 · Amount on Record
Deed SaleApr 26, 2018 · Amount on Record
Prior SaleOct 30, 2009 · Amount on Record
Deed Document Number201864872
Prior Transfer DateOct 31, 2005
Prior Transfer Doc0000432965
Record UpdatedSep 20, 2026

April 2018: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateApr 26, 2018
Property Address455 OBSIDIAN WAY, CLAYTON, CA 94517-2011
Document Number0000064872
Instrument DateApr 23, 2018
Instrument64872
Transaction TypeTransfer
Record UpdatedMay 3, 2018
Title CompanyCHICAGO TITLE COMPANY

Transaction

AmountAmount Recorded
Tax$1,182.50
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address1311 DAVID LN CONCORD CA 945183842, CONCORD, CA 94518-3842

March 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 31, 2017
Property Address455 OBSIDIAN WAY, CLAYTON, CA 94517-2011
Document Number0000056612
Instrument DateMar 16, 2017
Instrument56612
Transaction TypeTransfer
Record UpdatedApr 10, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address455 OBSIDIAN WAY CLAYTON CA 945172011, CLAYTON, CA 94517-2011

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityClayton City
Unified School DistrictMount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,247,624 (+2%) Land $536,187 Building $711,437
2025$15,146.00 (+6.06%)$1,223,162 (+4.04%) Land $525,674 Building $697,488
2023$14,280.00 (+0.38%)$1,175,666 Land $505,262 Building $670,404
2022$14,226.00

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 RiskHigh
above 73% of the US · above 48% of California
Wildfire Likelihood0.3% 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 SystemCONTRA COSTA WATER DISTRICT
serves 210,500 people · EPA ID CA0710003
Water SourceSurface water
Last State InspectionJan 2022
LeadUnder 1 ppb (2026–2028)
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 188 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Starlink
Satellite		280 / 30

May also be available: T-Mobile, Unwired, Verizon.

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