660 Tampico, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 660 Tampico, Walnut Creek, CA 94598

Property Summary

Property TypeTownhouse
Details2 bd · 2.5 ba · 1,458 sqft · built 1979
Lot Size0.03 acres (1,320 sqft)
OwnerCompany Name on File
Last Sale$275,000 (May 1999)
Tax Bill$3,584 (2025)
Flood ZoneZone X (minimal risk)
APN140-402-002-4

Property Details

APN / Parcel Number

Primary APN140-402-002-4
Alternative APN
  • 140-402-002

Interior

Bedrooms2 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms8 Rooms
Stories2 Stories
Building Area1,458 sqft Living Area
1st Floor Area803 sqft
2nd Floor Area655 sqft

Exterior

Year BuiltBuilt 1979
Effective Year BuiltEffective 1980
Architectural StyleTownhouse
Lot Area1,320 sqft (0.03 acres)
Garage TypeAttached
Garage Area462 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address660 TAMPICO
CityWALNUT CREEK
StateCA
Zip94598-2923
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Townhouse
Local Zoning CodePUD
Legal DescriptionT05211 L0077 B
Legal SubdivisionSUBDIVISION 5211 FILED JUNE 16 1978 IN
Legal Tract05211
Legal Lot Number77
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2005
Census Tract343002

Owner

Source: Contra Costa County assessment roll, 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 File
Mailing Address660 TAMPICO, WALNUT CREEK, CA 94598-2923
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleMay 12, 1999 · Amount on Record
Deed SaleMay 12, 1999 · Amount on Record
Deed Document Number1999127341
Last Transfer DateJul 30, 2015
Transfer Doc0000160819
Record UpdatedSep 20, 2026

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$263,859 (+2%) Land $68,314 Building $195,545
2025$3,584.00 (+4.73%) Homeowner's exemption$258,686 (+4.04%) Land $66,975 Building $191,711
2023$3,422.00 (+0.94%) Homeowner's exemption$248,642 Land $64,375 Building $184,267
2022$3,390.00

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 Policies3 in force
Nearby Flood Claims1 (2004)
Claims Outside the SFHA1 of 1
Most Recent ClaimJan 2004 · tidal / storm surge

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 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 301 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
T-Mobile
Fixed Wireless
100 / 20
AT&T
DSL · Fixed Wireless in parts of the area
100 / 20

May also be available: Etheric Networks, Sonic Telecom.

Nearby Properties on Tampico

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