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540 Stirling Ct, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 540 Stirling Ct, Discovery Bay, CA 94505

Property Summary

Property TypeSingle Family Home
Details3 bd · 2.5 ba · 2,365 sqft · built 2002
Lot Size0.126 acres (5,503 sqft)
OwnerIndividual on Record
Last Sale$495,000 (Sep 2017)
Tax Bill$5,818 (2025)
Deeds & MortgagesNov 2020 Mortgage
Sep 2017 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN011-370-051-2

Property Details

APN / Parcel Number

Primary APN011-370-051-2
Alternative APN
  • 011-370-051

Interior

Bedrooms3 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms9 Rooms
Stories2 Stories
Building Area2,365 sqft Living Area
1st Floor Area1,093 sqft
2nd Floor Area1,272 sqft

Exterior

Year BuiltBuilt 2002
Effective Year BuiltEffective 2003
Lot Area5,503 sqft (0.126 acres)
View / LotLake
Garage TypeAttached
Garage Area554 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address540 STIRLING CT
CityDISCOVERY BAY
StateCA
Zip94505-1832
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeP1
Legal DescriptionT8143 L51
Legal SubdivisionSUBDIVISION 8143
Legal Tract8143
Legal Lot Number51
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group1
Census Block1010
Census Tract304007

Owner

Source: Contra Costa County assessment roll, as of July 14, 2026

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

Owner of RecordIndividual on Record
Mailing Address540 STIRLING CT, DISCOVERY BAY, CA 94505-1832
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Nov 6, 2020Deed of Trust, Mortgage · Conventional Mortgage
SUMMIT FUNDING INC
Sep 21, 2017Grant Deed, Transfer · Conventional Mortgage
SUMMIT FUNDING INC

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 21, 2017 · Amount on Record
Deed SaleSep 21, 2017 · Amount on Record
Prior SaleMay 30, 2012 · Amount on Record
Deed Document Number2017172941
Prior Transfer DateNov 9, 2005
Prior Transfer Doc0000107104
Record UpdatedSep 20, 2026

November 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address540 STIRLING CT, DISCOVERY BAY, CA 94505-1832
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyCHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name
Address540 STIRLING CT, DISCOVERY BAY, CA 94505-1832

Mortgage

Document Number0000266424
DateNov 6, 2020
Instrument2020-266424
Lender
NameSUMMIT FUNDING INC
TypeMortgage Company
AddressSACRAMENTO, CA 95815
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueDec 1, 2050

September 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateSep 21, 2017
Property Address540 STIRLING CT, DISCOVERY BAY, CA 94505-1832
Document Number0000172941
Map ReferenceMB418 PG34
Instrument DateSep 14, 2017
Instrument2017-172941
Transaction TypeTransfer
Record UpdatedJul 27, 2021
Title CompanyPLACER TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address540 STIRLING CT, DISCOVERY BAY, CA 94505-1832

Mortgage

Document Number0000172942
DateSep 21, 2017
Instrument2017-172942
Lender
NameSUMMIT FUNDING INC
TypeMortgage Company
AddressSACRAMENTO, CA 95815
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueOct 1, 2047

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 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

YearTax BillAssessed Value
2026$335,655 (+2%) Land $34,585 Building $301,070
2025$5,818.00 (+7.7%)$329,074 (+4.04%) Land $33,907 Building $295,167
2023$5,402.00 (+1.69%)$316,298 Land $32,592 Building $283,706
2022$5,312.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 67% of the US · lower than 81% of California
Wildfire Likelihood0.05% 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 SystemTOWN OF DISCOVERY BAY
serves 16,790 people · EPA ID CA0710009
Water SourceGroundwater
Last State InspectionMar 2023
LeadUnder 1 ppb (2022–2024)
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 277 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20

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