334 Oneil Cir, Hercules, CA 94547 Property Records

Contra Costa County property record for 334 Oneil Cir, Hercules, CA 94547 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,064 sqft · built 1988
Lot Size	0.068 acres (2,970 sqft)
Owner	Company Name on File
Last Sale	$280,000 (Dec 2008)
Tax Bill	$6,286 (2025)
Flood Zone	Zone X (minimal risk)
APN	`404-351-075-1`

Property Details

APN / Parcel Number

Primary APN	`404-351-075-1`
Alternative APN	`404-351-075`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	4 Rooms
Stories	1 Story
Building Area	1,064 sqft Living Area
1st Floor Area	1,064 sqft

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1990
Architectural Style	Cluster
Lot Area	2,970 sqft (0.068 acres)
Garage Type	Attached
Garage Area	254 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	334 ONEIL CIR
City	HERCULES
State	CA
Zip	94547-3747
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T6773 L75
Legal Tract	6773
Legal Lot Number	75
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	WEST CONTRA COSTA
Census Block Group	2
Census Block	2027
Census Tract	359105

Owner

Source: Contra Costa County records · APN 404-351-075-1

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 Record	Company Name on File
Mailing Address	334 ONEIL CIR, HERCULES, CA 94547-3747
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 26, 2008 · Amount on Record
Deed Sale	Dec 26, 2008 · Amount on Record
Prior Sale	Sep 29, 2008 · Amount on Record
Deed Document Number	2008275584
Last Transfer Date	Apr 25, 2013
Transfer Doc	0000119097
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Hercules City
Unified School District	West Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2026		$367,768 (+2%) Land $197,019 Building $170,749
2025	$6,286.00 (+6.69%)	$360,557 (+4.04%) Land $193,156 Building $167,401
2023	$5,892.00 (+1.15%)	$346,557 Land $185,656 Building $160,901
2022	$5,825.00

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 Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Nearby Flood Policies	5 in force

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None 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

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 250
Verizon	Fixed Wireless	300 / 20
AT&T	Fixed Wireless	100 / 20
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	DSL	100 / 20

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