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121 Oak Ct, Clayton, CA 94517 Property Records

Contra Costa County property record for 121 Oak Ct, Clayton, CA 94517

Property Summary

Property TypeSingle Family Home
Details3 bd · 5 ba · 7,165 sqft · built 1977
Lot Size1.47 acres (64,380 sqft)
OwnerCompany Name on Record
Last Sale$1,850,000 (Mar 2015)
Tax Bill$27,889 (2025)
Deeds & MortgagesApr 2020 Mortgage
Jun 2019 Transfer
Flood ZoneZone X (minimal risk)
APN119-361-004-3

Property Details

APN / Parcel Number

Primary APN119-361-004-3
Alternative APN
  • 119-361-004

Interior

Bedrooms3 Beds
Full Baths5 Baths
Half Baths1 Half Bath
Total Rooms15 Rooms
Stories1 Story
Building Area7,165 sqft Living Area
1st Floor Area6,689 sqft
Basement Area476 sqft

Exterior

Year BuiltBuilt 1977
Effective Year BuiltEffective 1979
Lot Area64,380 sqft
Garage TypeAttached
Garage Area862 sqft
Parking Spaces3 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address121 OAK CT
CityCLAYTON
StateCA
Zip94517-1361
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodePUD
Legal DescriptionT04451 L0004 B EX 1/2 MR
Legal SubdivisionSUBDIVISION 4451
Legal Tract04451
Legal Lot Number4
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group3
Census Block3008
Census Tract355306

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 Address121 OAK CT, CLAYTON, CA 94517-1361
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Apr 22, 2020Deed of Trust, Mortgage · Conventional Mortgage
CITY NATIONAL BANK
Jun 4, 2019Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMar 31, 2015 · Amount on Record
Deed SaleMar 31, 2015 · Amount on Record
Prior SaleApr 21, 2005 · Amount on Record
Deed Document Number201557975
Last Transfer DateMay 22, 2019
Transfer Doc0000082124
Record UpdatedOct 29, 2026

April 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address121 OAK CT, CLAYTON, CA 94517-1361
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyORTC

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000076249
DateApr 22, 2020
Instrument2020-076249
Lender
NameCITY NATIONAL BANK
TypeBank
AddressLOS ANGELES, CA 90071
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueMay 1, 2035

June 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJun 4, 2019
Property Address121 OAK CT, CLAYTON, CA 94517-1361
Document Number0000082124
Instrument DateMay 22, 2019
Instrument82124
Transaction TypeTransfer
Record UpdatedJun 13, 2019
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address121 OAK CT CLAYTON CA 945171361, CLAYTON, CA 94517-1361

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$2,451,943 (+2%) Land $931,669 Building $1,520,274
2025$27,889.00 (+4.03%)$2,403,866 (+4.04%) Land $913,401 Building $1,490,465
2023$26,809.00 (+1.03%)$2,310,524 Land $877,934 Building $1,432,590
2022$26,535.00

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 Policies4 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 RiskModerate
above 60% of the US · lower than 64% of California
Wildfire Likelihood0.2% 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 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 351 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Astound Broadband, AT&T.

Cell Coverage

5G (outdoors only) and 4G LTE

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