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4748 Winchester Dr, Oakley, CA 94561 Property Records

Contra Costa County property record for 4748 Winchester Dr, Oakley, CA 94561

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,782 sqft · built 2000
Lot Size0.167 acres (7,280 sqft)
Owner2 Trust Names on File
Last Sale$305,000 (Oct 2008)
Tax Bill$5,935 (2025)
Deeds & MortgagesOct 2025 Transfer
Mar 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN034-340-020-6

Property Details

APN / Parcel Number

Primary APN034-340-020-6
Alternative APN
  • 034-340-020

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area1,782 sqft Living Area
1st Floor Area1,782 sqft

Exterior

Year BuiltBuilt 2000
Effective Year BuiltEffective 2000
Lot Area7,280 sqft (0.167 acres)
Garage TypeAttached
Garage Area560 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address4748 WINCHESTER DR
CityOAKLEY
StateCA
Zip94561-6323
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT8168 L20
Legal SubdivisionSUBDIVISION 8168
Legal Tract8168
Legal Lot Number20
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group3
Census Block3001
Census Tract302014

Owner

4748 Winchester Dr is owner-occupied and held in a trust since July 2025.

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

Owner of Record2 Trust Names on File
Mailing Address4748 WINCHESTER DR, OAKLEY, CA 94561-6323
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

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

DateDocument
Oct 10, 2025Intrafamily Transfer, Transfer
Mar 20, 2020Deed of Trust, Mortgage · Conventional Mortgage
QUICKEN LNS

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 3, 2008 · Amount on File
Deed SaleOct 3, 2008 · Amount on File
Prior SaleMay 19, 2008 · Amount on File
Deed Document Number2008218405
Last Transfer DateJul 25, 2025
Transfer Doc0000106560
Record UpdatedOct 29, 2026

October 2025: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateOct 10, 2025
Property Address4748 WINCHESTER DR, OAKLEY, CA 94561-6323
Document Number0000106560
Map ReferenceMB 422 PG 17
Instrument DateJul 25, 2025
Instrument2025- 106560
Transaction TypeTransfer
Record UpdatedOct 21, 2025

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4748 WINCHESTER DR, OAKLEY, CA 94561-6323

March 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address4748 WINCHESTER DR, OAKLEY, CA 94561-6323
Document Number0000056975
Instrument DateMar 20, 2020
Transaction TypeMortgage
Record UpdatedApr 16, 2020
Title CompanyAMROCK TITLE CA INC

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address4748 WINCHESTER DR OAKLEY CA 945616323, OAKLEY, CA 94561-6323

Mortgage

Document Number0000056975
DateMar 25, 2020
Instrument56975
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
AddressDETROIT, MI 48226-1906
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term360 Months
DueMar 24, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 4748 Winchester Dr was $5,935.

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityOakley City
Secondary School DistrictLiberty Union High School District (09 - 12)
Elementary School DistrictOakley Union Elementary School District (KG - 08)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$400,603 (+2%) Land $65,666 Building $334,937
2025$5,935.00$392,749 Land $64,379 Building $328,370
2023$5,764.00 (+0.98%)$377,500 Land $61,880 Building $315,620
2022$5,708.00

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

Flood

FEMA maps place 4748 Winchester Dr in Zone X, an area of minimal flood risk.

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 Policies2 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

The area around 4748 Winchester Dr has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land 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 SystemDIABLO WATER DISTRICT
serves 47,158 people · EPA ID CA0710007
Water SourcePurchased surface water from RANDALL-BOLD WATER TREATMENT PLANT
Last State InspectionJan 2024
Also Mapped HereCONTRA COSTA WATER DISTRICT
Lead2 ppb (2020–2022)
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 542 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
AT&T
DSL		100 / 20

May also be available: Verizon.

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