5121 Hansen Dr, Antioch, CA 94531 Property Records

Contra Costa County property record for 5121 Hansen Dr, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,853 sqft · built 2000
Lot Size	0.249 acres (10,854 sqft)
Owner	Individual Name on Record
Tax Bill	$7,823 (2025)
Deeds & Mortgages	Apr 2021 Mortgage Mar 2018 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`075-510-023-7`

Property Details

APN / Parcel Number

Primary APN	`075-510-023-7`
Alternative APN	`075-510-023`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,853 sqft Living Area
1st Floor Area	2,853 sqft

Exterior

Year Built	Built 2000
Effective Year Built	Effective 2000
Lot Area	10,854 sqft (0.249 acres)
Garage Type	Attached
Garage Area	645 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	5121 HANSEN DR
City	ANTIOCH
State	CA
Zip	94531-7489
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	A-2
Legal Description	T8194 L207
Legal Subdivision	SUBDIVISION 8194
Legal Tract	8194
Legal Lot Number	207
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	2
Census Block	2010
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	5121 HANSEN DR, ANTIOCH, CA 94531-7489
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Apr 6, 2021	Affidavit of Death of Joint Tenant, Transfer · VA Mortgage CALCULATED RISK ANALYTICS LLC
Mar 29, 2018	Quit Claim Deed, Transfer · VA Mortgage LOANDEPOT.COM LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 29, 2018
Deed Sale	Mar 29, 2018
Prior Sale	Sep 4, 2003 · Amount on Record
Deed Document Number	201848387
Last Transfer Date	Mar 12, 2021
Transfer Doc	0000102050
Record Updated	Sep 20, 2026

April 2021: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 6, 2021
Property Address	5121 HANSEN DR, ANTIOCH, CA 94531-7489
Document Number	0000102050
Map Reference	MB 403 PG 30
Instrument Date	Mar 12, 2021
Instrument	2021-102050
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5121 HANSEN DR, ANTIOCH, CA 94531-7489

Mortgage

Document Number	0000102051
Date	Apr 6, 2021
Instrument	2021-102051

Lender

Name	CALCULATED RISK ANALYTICS LLC
Type	Non-Lending Institution
Address	NEWPORT BEACH, CA 92660

Agreement

Type	VA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2051

March 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 29, 2018
Property Address	5121 HANSEN DR, ANTIOCH, CA 94531-7489
Document Number	0000048387
Instrument Date	Mar 20, 2018
Instrument	48387
Transaction Type	Transfer
Record Updated	Apr 5, 2018
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	5121 HANSEN DR ANTIOCH CA 945317489, ANTIOCH, CA 94531-7489

Mortgage

Document Number	48388
Date	Mar 29, 2018
Instrument	48388

Lender

Name	LOANDEPOT.COM LLC
Type	Funding / Finance Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	VA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 28, 2048

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		$697,829 (+2%) Land $152,266 Building $545,563
2025	$7,823.00 (+6.02%) Homeowner's exemption	$684,147 (+4.04%) Land $149,281 Building $534,866
2023	$7,379.00 (+1.64%) Homeowner's exemption	$657,583 Land $143,485 Building $514,098
2022	$7,260.00

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	Moderate above 69% of the US · above 44% of California
Wildfire Likelihood	0.3% 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 260 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

May also be available: Unwired, Verizon.

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