1. Home
  2. California
  3. Contra Costa County
  4. Discovery Bay
  5. Emerald Ct

5310 Emerald Ct, Discovery Bay, CA 94505 Property Records

Contra Costa County property record for 5310 Emerald Ct, Discovery Bay, CA 94505

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,868 sqft · built 1986
Lot Size0.201 acres (8,760 sqft)
OwnerTrust Name on File
Last Sale$625,000 (Aug 2018)
Tax Bill$9,416 (2025)
Deeds & MortgagesAug 2018 Sale
Flood ZoneZone X (reduced by levee)
APN008-261-010-6

Property Details

APN / Parcel Number

Primary APN008-261-010-6
Alternative APN
  • 008-261-010

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,868 sqft Living Area
1st Floor Area1,868 sqft

Exterior

Year BuiltBuilt 1986
Effective Year BuiltEffective 2005
Lot Area8,760 sqft (0.201 acres)
Garage TypeAttached
Garage Area502 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address5310 EMERALD CT
CityDISCOVERY BAY
StateCA
Zip94505-9288
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeP1
Legal DescriptionT6560 L21 EX 3/4 MR
Legal SubdivisionSUBDIVISION 6560
Legal Tract6560
Legal Lot Number21
JurisdictionCONTRA COSTA CA
Township / Civil DivisionEAST CONTRA COSTA
Census Block Group1
Census Block1004
Census Tract304003

Owner

5310 Emerald Ct is held in a trust since August 2018.

Source: Contra Costa County records, as of July 14, 2026

Owner of RecordTrust Name on File
Mailing AddressPO BOX 4401, SAN MATEO, CA 94404-0401
Owner TypeCompany
VestingTrust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleAug 17, 2018 · Amount on File
Deed SaleAug 17, 2018 · Amount on File
Prior SaleJun 3, 2014 · Amount on File
Deed Document Number2018131733
Record UpdatedOct 29, 2026

August 2018: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateAug 17, 2018
Property Address5310 EMERALD CT, DISCOVERY BAY, CA 94505-9288
Document Number0000131733
Instrument DateAug 13, 2018
Instrument131733
Transaction TypeTransfer
Record UpdatedAug 27, 2018
Title CompanyFIDELITY NATIONAL TITLE

Transaction

AmountAmount on Record
Tax$687.50
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address5310 EMERALD CT DISCOVERY BAY CA 945059288, DISCOVERY BAY, CA 94505-9288

Tax Assessment & Valuation

The 2025 property tax bill for 5310 Emerald Ct was $9,416.

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$711,136 (+2%) Land $284,453 Building $426,683
2025$9,416.00$697,193 Land $278,876 Building $418,317
2023$8,830.00 (+1.58%)$670,122 Land $268,048 Building $402,074
2022$8,693.00

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

Flood

FEMA maps place 5310 Emerald Ct in Zone X, where a levee reduces flood risk, though there have been 1 flood claim nearby since 1982.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
reduced by levee · depends on levee performance
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies7 in force
Nearby Flood Claims1 (1982)
Most Recent ClaimJan 1982 · rainfall accumulation

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 5310 Emerald Ct is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 97% of the US · lower than 97.8% of California
Wildfire LikelihoodUnder 0.01% 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 310 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20
AT&T
Fixed Wireless · DSL in parts of the area		100 / 20

May also be available: Matrix Broadband.

Nearby Properties on Emerald Ct

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures