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400 Walnut Ave, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 400 Walnut Ave, Walnut Creek, CA 94598

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,968 sqft · built 1974
Lot Size0.316 acres (13,750 sqft)
Owner2 Company Names on Record
Tax Bill$4,741 (2025)
Deeds & MortgagesJul 2018 Mortgage
Flood ZoneZone X (minimal risk)
APN142-312-008-6

Property Details

APN / Parcel Number

Primary APN142-312-008-6
Alternative APN
  • 142-312-008

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms10 Rooms
Stories1 Story
Building Area1,968 sqft Living Area
1st Floor Area1,968 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1974
Effective Year BuiltEffective 1975
Architectural StyleRanch
Exterior MaterialWood Siding
Construction TypeFrame
Roof MaterialWood Shingle
Lot Area13,750 sqft (0.316 acres)
Garage TypeAttached
Garage Area630 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address400 WALNUT AVE
CityWALNUT CREEK
StateCA
Zip94598-3377
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR10
Legal DescriptionT04366 L0013 B
Legal SubdivisionSUBDIVISION 4366
Legal Tract04366
Legal Lot Number13
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2007
Census Tract338301

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 Record2 Company Names on Record
Mailing Address400 WALNUT AVE, WALNUT CREEK, CA 94598-3377
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateJul 17, 2018
Transfer Doc0000115980
Record UpdatedOct 29, 2026

July 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 20, 2018
Property Address400 WALNUT AVE, WALNUT CREEK, CA 94598-3377
Document Number0000115980
Instrument DateJul 17, 2018
Instrument115980
Transaction TypeTransfer
Record UpdatedJul 30, 2018
Title CompanyWFG NATIONAL TITLE INSURANCE

Transaction

Tax$0.00
Amount AccuracyFull Value
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address400 WALNUT AVE WALNUT CREEK CA 945983377, WALNUT CREEK, CA 94598-3377

Mortgage

Document Number115981
DateJul 20, 2018
Instrument115981
Lender
NameBANK OF AMERICA
TypeBank
AddressCHARLOTTE, NC 28255
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueJul 19, 2048

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityWalnut Creek City
Unified School DistrictMount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$363,450 (+2%) Land $160,801 Building $202,649
2025$4,741.00 (+4.43%) Homeowner's exemption$356,325 (+4.04%) Land $157,649 Building $198,676
2023$4,540.00 (+0.91%) Homeowner's exemption$342,490 Land $151,528 Building $190,962
2022$4,499.00

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
Community Rating SystemClass 8 (10% premium discount)
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 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% 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 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 369 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable · Fiber in parts of the area		1,500 / 50
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
AT&T
DSL		100 / 20

May also be available: Etheric Networks, Sonic Telecom, T-Mobile.

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