637 Brownstone Rd, Oakley, CA 94561 Property Records

Contra Costa County property record for 637 Brownstone Rd, Oakley, CA 94561

Property Summary

Property TypeRecreational Vacant Land
Details3 bd · 1 ba · 1,016 sqft · built 1933
Lot Size9.96 acres (434,293 sqft)
OwnerCompany Name on Record
Tax Bill$8,757 (2025)
Deeds & MortgagesAug 2017 Transfer
Flood ZoneZone X (minimal risk)
APN034-170-006

Property Details

APN / Parcel Number

Primary APN034-170-006
Alternative APNs
  • 034-170-006-0
  • 0341700045

Interior

Bedrooms3 Beds
Full Baths1 Bath
Total Rooms6 Rooms
Building Area1,016 sqft
1st Floor Area1,016 sqft

Exterior

Year BuiltBuilt 1933
Effective Year BuiltEffective 1933
Lot Area434,293 sqft

Location & Zoning

Street Address637 BROWNSTONE RD
CityOAKLEY
StateCA
Zip94561
Property CategoryPublic Works
Property TypePublic Works > Recreational Vacant Land
Legal DescriptionREC OF SURVEY 59 LSM 28 POR PCL D & E
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group1
Census Block1001
Census Tract303104

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 AddressPO BOX 392, LIVERMORE, CA 94551-0392
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleFeb 5, 2007
Deed SaleFeb 5, 2007
Prior SaleOct 22, 2004 · Amount on Record
Deed Document Number200734814
Last Transfer DateJun 28, 2017
Transfer Doc0000157929
Record UpdatedOct 29, 2026

August 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateAug 30, 2017
Property Address637 BROWNSTONE RD, OAKLEY, CA 94561
Document Number0000157929
Instrument DateJun 28, 2017
Instrument157929
Transaction TypeTransfer
Record UpdatedSep 5, 2017

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
AddressPO BOX 392 LIVERMORE CA 945510392, LIVERMORE, CA 94551-0392

Tax Assessment & Valuation

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$800,000 (-) Land $800,000
2025$8,757.00 (+5.8%)$800,000 (+6.67%) Land $800,000
2023$8,277.00 (+6.05%)$750,000 Land $750,000
2022$7,805.00

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 94% of the US · lower than 96% of California
Wildfire Likelihood0.02% annual chance
ExposureNone
beyond 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 163 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber
5,000 / 5,000
Xfinity
Cable
2,000 / 2,000
Unwired
Fixed Wireless
300 / 25
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

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