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601 Walnut Ave, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 601 Walnut Ave, Walnut Creek, CA 94598

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 2,050 sqft · built 1965
Lot Size0.277 acres (12,075 sqft)
OwnerTrust Name on File
Tax Bill$5,442 (2025)
Deeds & MortgagesFeb 2022 Transfer
Feb 2019 Transfer
+ 1 more
Flood ZoneZone X (minimal risk)
APN139-234-001-2

Property Details

APN / Parcel Number

Primary APN139-234-001-2
Alternative APN
  • 139-234-001

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area2,050 sqft Living Area
Gross Area2,561 sqft
1st Floor Area2,050 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1965
Effective Year BuiltEffective 1965
Architectural StyleRanch
Exterior MaterialWood Siding
Construction TypeFrame
Roof MaterialWood Shingle
Lot Area12,075 sqft (0.277 acres)
Garage TypeAttached
Garage Area511 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address601 WALNUT AVE
CityWALNUT CREEK
StateCA
Zip94598-3732
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR12
Legal DescriptionTRACT 3424 LOT 1 EX MR
Legal SubdivisionSUBDIVISION 3424
Legal Tract3424
Legal Lot Number1
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1004
Census Tract338302

Owner

601 Walnut Ave is owner-occupied and held in a trust since February 2022.

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

Owner of RecordTrust Name on File
Mailing Address601 WALNUT AVE, WALNUT CREEK, CA 94598-3732
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

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
Feb 10, 2022Intrafamily Transfer, Transfer
Feb 6, 2019Quit Claim Deed, Transfer
OTHER
Feb 6, 2019Affidavit of Death, Transfer
OTHER

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateFeb 8, 2022
Transfer Doc0000025995
Record UpdatedSep 20, 2026

February 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateFeb 10, 2022
Property Address601 WALNUT AVE, WALNUT CREEK, CA 94598-3732
Document Number0000025995
Map ReferenceMB 103 PG 34
Instrument DateFeb 8, 2022
Instrument2022-025995
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
Address1610 SUTTER ST APT 205, 205, SAN FRANCISCO, CA 94109-5231

February 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateFeb 6, 2019
Property Address601 WALNUT AVE, WALNUT CREEK, CA 94598-3732
Document Number0000016335
Instrument DateJun 18, 2018
Instrument16335
Transaction TypeTransfer
Record UpdatedFeb 15, 2019
Title CompanyOTHER

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address601 WALNUT AVE WALNUT CREEK CA 945983732, WALNUT CREEK, CA 94598-3732

February 2019: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionCONTRA COSTA CA
Recording DateFeb 6, 2019
Property Address601 WALNUT AVE, WALNUT CREEK, CA 94598-3732
Document Number0000016334
Instrument DateJun 18, 2018
Instrument16334
Transaction TypeTransfer
Record UpdatedFeb 15, 2019
Title CompanyOTHER

Transaction

Tax$0.00
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address601 WALNUT AVE WALNUT CREEK CA 945983732, WALNUT CREEK, CA 94598-3732

Tax Assessment & Valuation

The 2025 property tax bill for 601 Walnut Ave was $5,442 with a homeowner's exemption.

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$428,126 (+2%) Land $251,900 Building $176,226
2025$5,442.00 Homeowner's exemption$419,732 Land $246,961 Building $172,771
2023$5,215.00 (-0.61%) Homeowner's exemption$403,435 Land $237,372 Building $166,063
2022$5,247.00

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

Flood

FEMA maps place 601 Walnut Ave 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
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

Wildfire risk around 601 Walnut Ave is low, with a 0.01% annual chance of 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 428 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable		1,500 / 50
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20
AT&T
DSL		100 / 20

May also be available: Sonic Telecom.

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