5145 Dumas Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 5145 Dumas Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	5 bd · 4 ba · 4,239 sqft · built 2002
Lot Size	0.234 acres (10,200 sqft)
Owner	Individual Name on Record
Last Sale	$698,500 (Nov 2002)
Tax Bill	$10,847 (2025)
Deeds & Mortgages	Sep 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`075-570-018-4`

Property Details

APN / Parcel Number

Primary APN	`075-570-018-4`
Alternative APN	`075-570-018`

Interior

Bedrooms	5 Beds
Full Baths	4 Baths
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	4,239 sqft Living Area
1st Floor Area	2,590 sqft
2nd Floor Area	1,649 sqft

Exterior

Year Built	Built 2002
Effective Year Built	Effective 2002
Lot Area	10,200 sqft (0.234 acres)
Garage Type	Attached
Garage Area	625 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	5145 DUMAS CT
City	ANTIOCH
State	CA
Zip	94531-8572
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T8319 L392
Legal Subdivision	SUBDIVISION 8319
Legal Tract	8319
Legal Lot Number	392
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	2
Census Block	2005
Census Tract	355118

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	Individual Name on Record
Mailing Address	5145 DUMAS CT, ANTIOCH, CA 94531-8572
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Person

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 20, 2002 · Amount on Record
Deed Sale	Nov 20, 2002 · Amount on Record
Deed Document Number	2002437996
Prior Transfer Date	Nov 12, 2002
Prior Transfer Doc	0000437995
Record Updated	Oct 29, 2026

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	5145 DUMAS CT, ANTIOCH, CA 94531-8572
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5145 DUMAS CT, ANTIOCH, CA 94531-8572

Mortgage

Document Number	0000250071
Date	Sep 8, 2021
Instrument	2021-250071

Lender

Name	SAFEAMERICA CU
Type	Credit Union
Address	PLEASANTON, CA 94588

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Oct 1, 2036

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		$900,000 (-6.74%) Land $146,000 Building $754,000
2025	$10,847.00 (+10.03%) Homeowner's exemption	$965,000 (+8.43%) Land $156,142 Building $808,858
2023	$9,858.00 (-0.52%) Homeowner's exemption	$890,000 Land $144,007 Building $745,993
2022	$9,910.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

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

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

Wildfire Risk	High above 84% of the US · above 64% of California
Wildfire Likelihood	0.9% annual chance
Exposure	Direct burnable vegetation

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 64 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
T-Mobile Fixed Wireless	100 / 20