1. Home
  2. California
  3. Contra Costa County
  4. Walnut Creek
  5. Monaco Ct

657 Monaco Ct, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 657 Monaco Ct, Walnut Creek, CA 94598

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 3,303 sqft · built 1990
Lot Size0.24 acres (10,454 sqft)
OwnerIndividual Name on File
Last Sale$750,000 (Jun 2020)
Tax Bill$10,002 (2025)
Deeds & MortgagesJun 2020 Transfer
Jun 2020 Sale
+ 1 more
Flood ZoneZone X (minimal risk)
APN142-153-021-1

Property Details

APN / Parcel Number

Primary APN142-153-021-1
Alternative APN
  • 142-153-021

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms11 Rooms
Stories2 Stories
Building Area3,303 sqft Living Area
Gross Area3,908 sqft
1st Floor Area1,813 sqft
2nd Floor Area1,490 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1990
Effective Year BuiltEffective 1990
Exterior MaterialStucco
Roof MaterialWood Shingle
Lot Area10,454 sqft (0.24 acres)
Garage TypeAttached
Garage Area605 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

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

Location & Zoning

Street Address657 MONACO CT
CityWALNUT CREEK
StateCA
Zip94598-3800
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT6948 L6
Legal SubdivisionSUBDIVISION 6948
Legal Tract6948
Legal Lot Number6
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2012
Census Tract338301

Owner

657 Monaco Ct is owned and occupied by an individual who bought it in June 2020.

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

Owner of RecordIndividual Name on File
Mailing Address657 MONACO CT, WALNUT CREEK, CA 94598-3800
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
Jun 9, 2020Quit Claim Deed, Transfer
NOT AVAILABLE
Jun 9, 2020Grant Deed, Transfer
NOT AVAILABLE
Jun 9, 2020Quit Claim Deed, Transfer
NOT AVAILABLE

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJun 9, 2020 · Amount on File
Deed SaleJun 9, 2020 · Amount on File
Prior SaleMay 2, 1995 · Amount on File
Deed Document Number2020110139
Prior Transfer DateJun 1, 2020
Prior Transfer Doc0000110138
Record UpdatedOct 29, 2026

June 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJun 9, 2020
Property Address657 MONACO CT, WALNUT CREEK, CA 94598-3800
Document Number0000110140
Instrument DateJun 4, 2020
Instrument110140
Transaction TypeTransfer
Record UpdatedJun 17, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address657 MONACO CT WALNUT CREEK CA 945983800, WALNUT CREEK, CA 94598-3800

June 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateJun 9, 2020
Property Address657 MONACO CT, WALNUT CREEK, CA 94598-3800
Document Number0000110139
Instrument DateJun 1, 2020
Instrument110139
Transaction TypeTransfer
Record UpdatedJun 17, 2020
Title CompanyNOT AVAILABLE

Transaction

AmountAmount on Record
Tax$825.00
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address657 MONACO CT WALNUT CREEK CA 945983800, WALNUT CREEK, CA 94598-3800

June 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJun 9, 2020
Property Address657 MONACO CT, WALNUT CREEK, CA 94598-3800
Document Number0000110138
Instrument DateJun 1, 2020
Instrument110138
Transaction TypeTransfer
Record UpdatedJun 17, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address822 OLENA ST WAILUKU HI 967939668, WAILUKU, HI 96793-9668

Tax Assessment & Valuation

The 2025 property tax bill for 657 Monaco Ct was $10,002.

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$842,918 (+2%) Land $291,242 Building $551,676
2025$10,002.00$826,391 Land $285,532 Building $540,859
2023$9,611.00 (+0.87%)$794,303 Land $274,446 Building $519,857
2022$9,528.00

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

Flood

FEMA maps place 657 Monaco Ct 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 657 Monaco Ct 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.

Nearby Properties on Monaco Ct

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures