3438 Keystone Loop, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 3438 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 Footage4,088 sqft Living Area
Lot Size7,100 sqft (0.163 acres)
OccupancyOwner Occupied
Last Sale$639,000 (2020)
Tax Bill$9,845.00 (2025)

Property Details

APN / Parcel Number

Primary APN011-421-039-6
Alternative APN
  • 011-421-039

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms11 Rooms
Building Area4,088 sqft Living Area
1st Floor1,991 sqft 1st Floor
2nd Floor2,097 sqft 2nd Floor
Stories2 Stories

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleCluster Style
Lot Area7,100 sqft (0.163 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area715 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling

Location & Zoning

Street Address3438 KEYSTONE LOOP
CityDISCOVERY BAY
StateCA
Zip94505-2324
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionT8430 L39
Legal SubdivisionSUBDIVISION 8430
Legal Tract8430
Legal Lot Number39
JurisdictionCONTRA COSTA CA
Minor Civil DivisionEAST CONTRA COSTA
Census Blockgroup3
Census Block3003
Census Tract304007

Owner

Source: Contra Costa County records · APN 011-421-039-6

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 Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Jul 20, 2026Grant Deed, Transfer · Conventional Mortgage
BANK OF AMERICA
Dec 29, 2021Deed of Trust, Mortgage · Conventional Mortgage
ROCKET MORTGAGE LLC
Jun 18, 2021Deed of Trust, Mortgage · Federal Housing Administration (FHA) Mortgage
LOANCARE LLC
Mar 04, 2020Grant Deed, Transfer · Federal Housing Administration (FHA) Mortgage
MOVEMENT MORTGAGE

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleMar 04, 2020 · Amount on Record
Deed SaleMar 04, 2020 · Amount on Record
Prior SaleNov 25, 2003 · Amount on Record
Deed Doc Number202041845
Prior Transfer DateMay 18, 2009
Prior Transfer Doc0000112704
Record RefreshedSep 20, 2026

July 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateJul 20, 2026
Property Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Document Number0000076137
Instrument DateJul 14, 2026
Instrument202676137
Transaction TypeTransfer
Record UpdatedJul 27, 2026
Title CompanyCHICAGO TITLE W, CHICAGO TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$94,435.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324

Mortgage

Document Number0000076138,
DateJul 20, 2026
Instrument202676138
Lender
NameBANK OF AMERICA
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueAug 01, 2056
Interest
Rate TypeAdjustable Rate
Rate6%
Initial TypeAdjustable Rate
AdjustableDocument includes a rider for adjustable-rate mortgage with a specific rate change date.
Max Rate-1%

December 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Transaction TypeMortgage
Record UpdatedNov 03, 2022
Title CompanyAMROCK INC

Transferred To (Grantee/Buyer)

NameVerified Name
Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324

Mortgage

Document Number0000348497
DateDec 29, 2021
Instrument2021-348497
Lender
NameROCKET MORTGAGE LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJan 01, 2052

June 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Transaction TypeMortgage
Record UpdatedNov 03, 2022

Transferred To (Grantee/Buyer)

NameVerified Name
Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324

Mortgage

Document Number0000176587
DateJun 18, 2021
Instrument2021-176587
Lender
NameLOANCARE LLC
TypeNon-Lending Institution
Agreement
TypeFederal Housing Administration (FHA) Mortgage
AmountAmount Recorded
Term345 Months
DueMar 01, 2050

March 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 04, 2020
Property Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324
Document Number0000041845
Map ReferenceMB 436 PG 17
Instrument DateFeb 27, 2020
Instrument2020-041845
Transaction TypeTransfer
Record UpdatedJul 27, 2021
Title CompanyFIDELITY NATIONAL TITLE CO

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Notice of Trustee Sale
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property (Marital Community) with Rights of Survivorship
Address3438 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2324

Mortgage

Document Number0000041846
DateMar 04, 2020
Instrument2020-041846
Lender
NameMOVEMENT MORTGAGE
TypeMortgage Company
Agreement
TypeFederal Housing Administration (FHA) Mortgage
AmountAmount Recorded
Term360 Months
DueMar 01, 2050

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$712,809 (+2%) Land $89,237 Building $623,572
2025$9,845.00 (+6.55%)$698,834 (+4.04%) Land $87,488 Building $611,346
2023$9,240.00 (+1.66%)$671,699 Land $84,092 Building $587,607
2022$9,089.00

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 AE, 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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