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3441 Keystone Loop, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 3441 Keystone Loop, Discovery Bay, CA 94505 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms2 Baths
Year BuiltBuilt 2003
Square Footage2,033 sqft Living Area
Lot Size6,600 sqft (0.152 acres)
OccupancyOwner Occupied
Last Sale$715,000 (2024)
Tax Bill$9,945.00 (2025)

Property Details

APN / Parcel Number

Primary APN011-421-007-3
Alternative APN
  • 011-421-007

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Building Area2,033 sqft Living Area
1st Floor2,033 sqft 1st Floor
Stories1 Stories

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleCluster Style
Lot Area6,600 sqft (0.152 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area482 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling

Location & Zoning

Street Address3441 KEYSTONE LOOP
CityDISCOVERY BAY
StateCA
Zip94505-2320
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionT8430 L7
Legal SubdivisionSUBDIVISION 8430
Legal Tract8430
Legal Lot Number7
JurisdictionCONTRA COSTA CA
Minor Civil DivisionEAST CONTRA COSTA
Census Blockgroup3
Census Block3001
Census Tract304007

Owner

Source: Contra Costa County records · APN 011-421-007-3

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 Address3441 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleDec 23, 2024 · Amount on Record
Deed SaleDec 23, 2024 · Amount on Record
Prior SaleOct 16, 2003 · Amount on Record
Deed Doc Number2024136938
Prior Transfer DateOct 29, 2024
Prior Transfer Doc0000119225
Record RefreshedSep 20, 2026

March 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMar 02, 2021
Property Address3441 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320
Document Number0000063374
Map ReferenceMB 436 PG 17
Instrument DateAug 31, 2020
Instrument2021-063374
Transaction TypeTransfer
Record UpdatedJun 07, 2023

Transaction

Tax$0.00
Amount AccuracyZero or No Consideration Stated
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address3441 KEYSTONE LOOP, DISCOVERY BAY, CA 94505-2320

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$729,300 (+2%) Land $183,600 Building $545,700
2025$9,945.00 (+32.48%) Homeowner's exemption$715,000 (+39.56%) Land $180,000 Building $535,000
2023$7,507.00 (+1.67%)$512,314 Land $153,731 Building $358,583
2022$7,384.00

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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