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20 Diablo Cir, Lafayette, CA 94549 Property Records

Contra Costa County property record for 20 Diablo Cir, Lafayette, CA 94549

Property Summary

Property TypeSingle Family Home
Details4 bd · 3.5 ba · 3,810 sqft · built 1951
Lot Size0.367 acres (16,000 sqft)
OwnerCompany Name on Record
Last Sale$620,000 (Jan 1995)
Tax Bill$15,256 (2025)
Deeds & MortgagesMar 2018 Transfer
Flood ZoneZone X (minimal risk)
APN251-091-017-3

Property Details

APN / Parcel Number

Primary APN251-091-017-3
Alternative APN
  • 251-091-017

Interior

Bedrooms4 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms11 Rooms
Stories1 Story
Building Area3,810 sqft Living Area
Gross Area4,348 sqft
1st Floor Area3,810 sqft

Exterior

Year BuiltBuilt 1951
Effective Year BuiltEffective 1970
Lot Area16,000 sqft (0.367 acres)
Garage TypeAttached
Garage Area538 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address20 DIABLO CIR
CityLAFAYETTE
StateCA
Zip94549-3316
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR10
Legal DescriptionHIDDEN VALLEY ESTATES #2 LOT 75
Legal SubdivisionHIDDEN VALLEY ESTATES #2
Legal Lot Number75
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1000
Census Tract353002

Owner

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordCompany Name on Record
Mailing Address20 DIABLO CIR, LAFAYETTE, CA 94549-3316
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJan 5, 1995 · Amount on Record
Deed SaleJan 5, 1995 · Amount on Record
Deed Document Number19951480
Last Transfer DateFeb 7, 2018
Transfer Doc0000033107
Record UpdatedOct 29, 2026

March 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 2, 2018
Property Address20 DIABLO CIR, LAFAYETTE, CA 94549-3316
Document Number0000033107
Instrument DateFeb 7, 2018
Instrument33107
Transaction TypeTransfer
Record UpdatedMar 12, 2018
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
Address20 DIABLO CIR LAFAYETTE CA 945493316, LAFAYETTE, CA 94549-3316

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityLafayette City
Secondary School DistrictAcalanes Union High School District (09 - 12)
Elementary School DistrictLafayette Elementary School District (KG - 08)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,239,423 (+2%) Land $428,317 Building $811,106
2025$15,256.00 (+3.58%) Homeowner's exemption$1,215,121 (+4.04%) Land $419,919 Building $795,202
2023$14,729.00 (+1.57%) Homeowner's exemption$1,167,938 Land $403,614 Building $764,324
2022$14,502.00

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 Policies3 in force
Nearby Flood Claims10 (1978–2001)
Claims Outside the SFHA7 of 10
Most Recent ClaimMar 2001 · rainfall accumulation
Claims by Event
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims
  • Severe Winter Storms, Flooding, Landslides, Mud Flows, Jan 1995 · 2 claims
  • Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 2 claims

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 93% of the US · lower than 96% of California
Wildfire Likelihood0.03% 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 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 277 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250

May also be available: AT&T, Etheric Networks, Unwired.

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