4038 Mount Diablo Blvd, Lafayette, CA 94549 Property Records

Contra Costa County property record for 4038 Mount Diablo Blvd, Lafayette, CA 94549

Property Summary

Property TypeSingle Family Home
Details6 bd · 4.5 ba · 3,242 sqft · built 1990
Lot Size0.437 acres (19,035 sqft)
OwnerIndividual Name on File
Tax Bill$10,624 (2025)
Deeds & MortgagesDec 2021 Mortgage
Oct 2021 Transfer
+ 1 more
Flood ZoneZone X (minimal risk)
APN252-011-010-3

Property Details

APN / Parcel Number

Primary APN252-011-010-3
Alternative APN
  • 252-011-010

Interior

Bedrooms6 Beds
Full Baths4.5 Baths
Half Baths1 Half Bath
Total Rooms13 Rooms
Stories1 Story
Building Area3,242 sqft Living Area
Gross Area2,390 sqft
1st Floor Area2,390 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1990
Effective Year BuiltEffective 1991
Architectural StyleRanch
Exterior MaterialWood Siding
Roof MaterialComposition Shingle
Lot Area19,035 sqft (0.437 acres)
Garage TypeAttached
Garage Area462 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address4038 MT DIABLO BLVD
CityLAFAYETTE
StateCA
Zip94549-3409
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeLR
Legal DescriptionSUBN ACALANES RO POR LOT 10 .437 AC
Legal SubdivisionSUBN ACALANES RO
Legal Lot Number10
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2000
Census Tract350000

Owner

4038 Mount Diablo Blvd is owned and occupied by an individual.

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

Owner of RecordIndividual Name on File
Mailing Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409
OccupancyOwner Occupied
Owner TypeIndividual

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
Dec 8, 2021Deed of Trust, Mortgage · Conventional Mortgage
FINANCE OF AMERICA MORTGAGE LLC
Oct 1, 2021Intrafamily Transfer, Transfer
Sep 13, 2021Gift Deed, Transfer

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedSep 20, 2026

December 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanySTEWART TITLE OF CA INC

Transferred To (Grantee/Buyer)

NameVerified Name
Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409

Mortgage

Document Number0000334287
DateDec 8, 2021
Instrument2021-334287
Lender
NameFINANCE OF AMERICA MORTGAGE LLC
TypeMortgage Company
AddressCONSHOHOCKEN, PA 19428
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueJan 1, 2052

October 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateOct 1, 2021
Property Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409
Document Number0000272418
Instrument DateSep 30, 2021
Instrument2021-272418
Transaction TypeTransfer
Record UpdatedJun 7, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409

September 2021: Gift Deed, Transfer

Document TypeGift Deed
JurisdictionCONTRA COSTA CA
Recording DateSep 13, 2021
Property Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409
Document Number0000254706
Map ReferenceMB 5405 PG 470
Instrument DateJul 26, 2021
Instrument2021-254706
Transaction TypeTransfer
Record UpdatedNov 3, 2022

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4038 MT DIABLO BLVD, LAFAYETTE, CA 94549-3409

Tax Assessment & Valuation

The 2025 property tax bill for 4038 Mount Diablo Blvd was $10,624.

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$764,128 (+2%) Land $263,779 Building $500,349
2025$10,624.00$749,146 Land $258,607 Building $490,539
2023$10,265.00 (-1.55%)$720,058 Land $248,566 Building $471,492
2022$10,427.00

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

Flood

FEMA maps place 4038 Mount Diablo Blvd in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AO, within 100 ft
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 4038 Mount Diablo Blvd is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 99.1% of the US · lower than 99.2% of California
Wildfire LikelihoodUnder 0.01% 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 174 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Unwired
Fixed Wireless
300 / 25

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

Nearby Properties on Mount Diablo Blvd

Nearby Streets

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