5113 Roundup Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 5113 Roundup Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,475 sqft · built 1995
Lot Size	0.119 acres (5,200 sqft)
Owner	2 Individual Names on Record
Last Sale	$146,500 (Aug 1994)
Tax Bill	$3,312 (2025)
Deeds & Mortgages	Apr 2022 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`056-240-004-4`

Property Details

APN / Parcel Number

Primary APN	`056-240-004-4`
Alternative APN	`056-240-004`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,475 sqft Living Area
1st Floor Area	1,475 sqft

Exterior

Year Built	Built 1995
Effective Year Built	Effective 1995
Lot Area	5,200 sqft (0.119 acres)
Garage Type	Attached
Garage Area	467 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	5113 ROUNDUP CT
City	ANTIOCH
State	CA
Zip	94531-8474
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T7620 L488
Legal Subdivision	SUBDIVISION 7620
Legal Tract	7620
Legal Lot Number	488
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	EAST CONTRA COSTA
Census Block Group	1
Census Block	1011
Census Tract	303207

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Shannon-Williamson Ranch listed 1987 · 12 contributing resources · NRIS 87000003

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

Source: Contra Costa County records, 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 Record	2 Individual Names on Record
Mailing Address	5113 ROUNDUP CT, ANTIOCH, CA 94531-8474
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 30, 1994 · Amount on Record
Deed Sale	Aug 30, 1994 · Amount on Record
Deed Document Number	1994216090
Record Updated	Sep 20, 2026

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	5113 ROUNDUP CT, ANTIOCH, CA 94531-8474
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5113 ROUNDUP CT, ANTIOCH, CA 94531-8474

Mortgage

Document Number	0000071471
Date	Apr 26, 2022
Instrument	2022-071471

Lender

Name	PACIFIC SERVICE CU
Type	Credit Union
Address	CONCORD, CA 94519

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2052

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$259,347 (+2%) Land $68,511 Building $190,836
2025	$3,312.00 (+6.6%) Homeowner's exemption	$254,263 (+4.04%) Land $67,168 Building $187,095
2023	$3,107.00 (+1.44%) Homeowner's exemption	$244,391 Land $64,560 Building $179,831
2022	$3,063.00

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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not 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 Risk	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.06% annual chance
Exposure	Indirect within 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 System	CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001
Water Source	Surface water
Last State Inspection	Jan 2024
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 638 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T DSL	100 / 20