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4879 Thiessen Ct, Concord, CA 94521 Property Records

Contra Costa County property record for 4879 Thiessen Ct, Concord, CA 94521

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 1,788 sqft · built 1986
Lot Size0.193 acres (8,400 sqft)
OwnerCompany Name on Record
Tax Bill$4,477 (2025)
Flood ZoneZone X (minimal risk)
APN116-222-020-4

Property Details

APN / Parcel Number

Primary APN116-222-020-4
Alternative APN
  • 116-222-020

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms8 Rooms
Stories1 Story
Building Area1,788 sqft Living Area
1st Floor Area1,788 sqft

Exterior

Year BuiltBuilt 1986
Effective Year BuiltEffective 1987
Lot Area8,400 sqft (0.193 acres)
Garage TypeAttached
Garage Area479 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address4879 THIESSEN CT
CityCONCORD
StateCA
Zip94521-2200
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR75
Legal DescriptionT06132 L0005 B
Legal SubdivisionSUBDIVISION 6132
Legal Tract06132
Legal Lot Number5
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2008
Census Tract333101

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 RecordCompany Name on Record
Mailing Address4879 THIESSEN CT, CONCORD, CA 94521-2200
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateJun 7, 2024
Transfer Doc0000056708
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
MunicipalityConcord City
Unified School DistrictMount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$327,548 (+2%) Land $95,564 Building $231,984
2025$4,477.00 (+5.27%) Homeowner's exemption$321,127 (+4.04%) Land $93,691 Building $227,436
2023$4,253.00 (+1.77%) Homeowner's exemption$308,658 Land $90,053 Building $218,605
2022$4,179.00

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; 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 633 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
AT&T
DSL		100 / 20

May also be available: Verizon.

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