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283 Oneil Cir, Hercules, CA 94547 Property Records

Contra Costa County property record for 283 Oneil Cir, Hercules, CA 94547 · Last verified August 2026

Property Summary

Property TypeTownhouse
Details4 bd · 3 ba · 1,538 sqft · built 1988
Lot Size0.058 acres (2,540 sqft)
Owner2 Individual Names on File
Last Sale$750,000 (Jan 2025)
Tax Bill$5,014 (2025)
Deeds & MortgagesAug 2023 Transfer
Flood ZoneZone X (minimal risk)
APN404-351-082-7

Property Details

APN / Parcel Number

Primary APN404-351-082-7
Alternative APN
  • 404-351-082

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms8 Rooms
Stories2 Stories
Building Area1,538 sqft Living Area
1st Floor Area871 sqft
2nd Floor Area667 sqft

Exterior

Year BuiltBuilt 1988
Effective Year BuiltEffective 1988
Architectural StyleTownhouse
Lot Area2,540 sqft (0.058 acres)
Garage TypeAttached
Garage Area403 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address283 ONEIL CIR
CityHERCULES
StateCA
Zip94547-3746
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Townhouse
Legal DescriptionT6773 L82
Legal SubdivisionSUBDIVISION 6773
Legal Tract6773
Legal Lot Number82
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group2
Census Block2028
Census Tract359105

Owner

Source: Contra Costa County records · APN 404-351-082-7

Assessment roll updated July 14, 2026 · Last verified August 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 Address283 ONEIL CIR, HERCULES, CA 94547-3746
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJan 27, 2025 · Amount on Record
Deed SaleJan 27, 2025 · Amount on Record
Deed Document Number20257601
Prior Transfer DateJul 28, 2023
Prior Transfer Doc0000075266
Record UpdatedSep 20, 2026

August 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateAug 07, 2023
Property Address283 ONEIL CIR, HERCULES, CA 94547-3746
Document Number0000075266
Map ReferenceMB 312 PG 22
Instrument DateJul 28, 2023
Instrument2023-075266
Transaction TypeTransfer
Record UpdatedAug 16, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Living Trust
Address283 ONEIL CIR, HERCULES, CA 94547-3746

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalityHercules City
Unified School DistrictWest Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

YearTax BillAssessed Value
2026$765,000 (+187.77%) Land $357,000 Building $408,000
2025$5,014.00 (+13.29%) Homeowner's exemption$265,835 (+4.04%) Land $91,859 Building $173,976
2023$4,426.00 (+1.14%) Homeowner's exemption$255,514 Land $88,293 Building $167,221
2022$4,376.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133591052, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Nearby Flood Policies5 in force

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 505 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
VerizonFixed Wireless300 / 20
AT&TFixed Wireless100 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TDSL100 / 20

May also be available at this address: Unwired, Sonic Telecom. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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