3465 Keystone Loop, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 3465 Keystone Loop, Discovery Bay, CA 94505 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms4 Baths
Year BuiltBuilt 2004
Square Footage4,088 sqft Living Area
Lot Size8,300 sqft (0.191 acres)
GarageAttached, 715 sqft
Last Sale$369,500 (2010)
Tax Bill$7,409.00 (2025)

Property Details

APN / Parcel Number

Primary APN011-421-011-5
Alternative APN
  • 011-421-011

Interior

Bedrooms4 Beds
Full Baths4 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 2004
Architectural StyleCluster Style
Lot Area8,300 sqft (0.191 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area715 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling

Location & Zoning

Street Address3465 KEYSTONE LOOP
CityDISCOVERY BAY
StateCA
Zip94505-2320
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionT8430 L11
Legal SubdivisionSUBDIVISION 8430
Legal Tract8430
Legal Lot Number11
JurisdictionCONTRA COSTA CA
Minor Civil DivisionEAST CONTRA COSTA
Census Blockgroup3
Census Block3001
Census Tract304007

Owner

Source: Contra Costa County records · APN 011-421-011-5

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 RecordCompany Name on File
Mailing Address1199 LITTLEOAK DR, SAN JOSE, CA 95129-4120
Owner TypeOwner is a Company
VestingOwner is a Trust, Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleMar 12, 2010 · Amount on Record
Deed SaleMar 12, 2010 · Amount on Record
Prior SaleJan 19, 2010 · Amount on Record
Deed Doc Number201049582
Last Transfer DateMay 16, 2021
Transfer Doc0000244909
Record RefreshedSep 20, 2026

September 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateSep 01, 2021
Property Address3465 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320
Document Number0000244909
Map ReferenceMB 436 PG 17
Instrument DateMay 16, 2021
Instrument2021-244909
Transaction TypeTransfer
Record UpdatedJun 07, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address1199 LITTLEOAK DR, SAN JOSE, CA 95129-4120

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$486,218 (+2%) Land $32,908 Building $453,310
2025$7,409.00 (+7.08%)$476,685 (+4.04%) Land $32,263 Building $444,422
2023$6,919.00 (+1.68%)$458,176 Land $31,011 Building $427,165
2022$6,805.00

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.

Nearby Properties on Keystone Loop

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