3221 G St, Antioch, CA 94509 Property Records

Contra Costa County property record for 3221 G St, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,433 sqft · built 1974
Lot Size	0.235 acres (10,230 sqft)
Owner	Individual Name on File
Last Sale	$330,000 (Nov 2003)
Tax Bill	$11,975 (2025)
Deeds & Mortgages	Jul 2018 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`071-291-003-3`

Property Details

APN / Parcel Number

Primary APN	`071-291-003-3`
Alternative APN	`071-291-003`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,433 sqft Living Area
1st Floor Area	1,433 sqft

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Lot Area	10,230 sqft (0.235 acres)
Garage Type	Attached
Garage Area	456 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	3221 G ST
City	ANTIOCH
State	CA
Zip	94509-5926
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT 4168 LOT 423 EX MR
Legal Subdivision	LONE TREE MEADOWS UNIT 9
Legal Tract	4168
Legal Lot Number	423
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2005
Census Tract	307101

Owner

3221 G St is owned and occupied by an individual who acquired it in August 2006.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	Individual Name on File
Mailing Address	3221 G ST, ANTIOCH, CA 94509-5926
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Person

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 12, 2003 · Amount on File
Deed Sale	Nov 12, 2003 · Amount on File
Prior Sale	Jul 27, 2001 · Amount on File
Deed Document Number	2003553587
Last Transfer Date	Aug 28, 2006
Transfer Doc	0000282064
Record Updated	Oct 29, 2026

July 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	3221 G ST, ANTIOCH, CA 94509-5926
Document Number	0000114309
Instrument Date	Jul 18, 2018
Transaction Type	Mortgage
Record Updated	Jul 26, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	3221 G ST ANTIOCH CA 945095926, ANTIOCH, CA 94509-5926

Mortgage

Document Number	0000114309
Date	Jul 18, 2018
Instrument	114309

Lender

Name	SUSAN Y SOONG CLERK OF THE US
Address	450 GOLDEN GATE AVE # 16TH, SAN FRANCISCO, CA 94102-3661

Agreement

Type	Conventional Mortgage
Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 3221 G St was $11,975 with a homeowner's exemption.

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		$508,743 (+2%) Land $145,014 Building $363,729
2025	$11,975.00 Homeowner's exemption	$498,769 Land $142,171 Building $356,598
2023	$11,679.00 (+0.79%) Homeowner's exemption	$479,402 Land $136,651 Building $342,751
2022	$11,587.00

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

Flood

FEMA maps place 3221 G St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 3221 G St is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond 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 582 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

May also be available: AT&T.

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