3410 Keystone Loop, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 3410 Keystone Loop, Discovery Bay, CA 94505 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms3 Baths
Year BuiltBuilt 2003
Square Footage2,562 sqft Living Area
Lot Size7,600 sqft (0.175 acres)
OccupancyOwner Occupied
Last Sale$290,000 (2009)
Tax Bill$6,210.00 (2025)

Property Details

APN / Parcel Number

Primary APN011-421-043-8
Alternative APN
  • 011-421-043

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms8 Rooms
Building Area2,562 sqft Living Area
1st Floor2,562 sqft 1st Floor
Stories1 Stories

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleCluster Style
Lot Area7,600 sqft (0.175 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area495 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling

Location & Zoning

Street Address3410 KEYSTONE LOOP
CityDISCOVERY BAY
StateCA
Zip94505-2324
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionT8430 L43
Legal SubdivisionSUBDIVISION 8430
Legal Tract8430
Legal Lot Number43
JurisdictionCONTRA COSTA CA
Minor Civil DivisionEAST CONTRA COSTA
Census Blockgroup3
Census Block3003
Census Tract304007

Owner

Source: Contra Costa County records · APN 011-421-043-8

Assessment roll updated July 14, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address3410 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Dec 29, 2020Intrafamily Transfer, Transfer · Conventional Mortgage
TOP FLITE FINANCIAL INC
May 09, 2017Quit Claim Deed, Transfer · Conventional Mortgage
CASHCALL

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 14, 2009 · Amount on Record
Deed SaleAug 14, 2009 · Amount on Record
Prior SaleNov 07, 2003 · Amount on Record
Deed Doc Number2009196714
Prior Transfer DateJun 08, 2007
Prior Transfer Doc0000325271
Record RefreshedSep 20, 2026

December 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateDec 29, 2020
Property Address3410 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Document Number0000328127
Map ReferenceMB 436 PG 17
Instrument DateDec 15, 2020
Instrument2020-328127
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyTIMIOS TITLE A CA CORP

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address3410 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
InvestorPossibly a Property Investor

Mortgage

Document Number0000328128
DateDec 29, 2020
Instrument2020-328128
Lender
NameTOP FLITE FINANCIAL INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueJan 01, 2036

May 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMay 09, 2017
Property Address3410 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Document Number0000080672
Instrument DateMay 02, 2017
Instrument80672
Transaction TypeTransfer
Record UpdatedMay 23, 2017
Title CompanyORANGE COAST TITLE COMPANY, ORANGE COAST TITLE CO

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenant/Joint Tenant w/ Right Of Survivorship
Address3410 KEYSTONE LOOP DISCOVERY BAY CA 945052324, DISCOVERY BAY, CA 94505-2324

Mortgage

Document Number80673
DateMay 09, 2017
Instrument80673
Lender
NameCASHCALL
TypeFunding / Finance Company
AddressORANGE, CA 92868
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term180 Months
DueMay 08, 2032

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Elementary School DistrictByron Union Elementary School District (KG - 08)
Secondary School DistrictLiberty Union High School District (09 - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$381,804 (+2%) Land $59,239 Building $322,565
2025$6,210.00 (+7.57%) Homeowner's exemption$374,319 (+4.04%) Land $58,078 Building $316,241
2023$5,773.00 (+1.71%) Homeowner's exemption$359,786 Land $55,824 Building $303,962
2022$5,676.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardModerate
500-Year FloodplainYes
Special Flood Hazard AreaNo
Nearest Special Flood Hazard AreaZone A, within 500 ft

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

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