307 W 3rd St, Antioch, CA 94509 Property Records

Contra Costa County property record for 307 W 3rd St, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 964 sqft · built 1936
Lot Size	0.115 acres (5,000 sqft)
Owner	Company Name on Record
Last Sale	$50,000 (Apr 2000)
Tax Bill	$2,751 (2025)
Deeds & Mortgages	Aug 2019 Transfer
Flood Zone	Zone X (minimal risk)
APN	`066-058-014-3`

Property Details

APN / Parcel Number

Primary APN	`066-058-014-3`
Alternative APN	`066-058-014`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	964 sqft Living Area
1st Floor Area	964 sqft

Exterior

Year Built	Built 1936
Effective Year Built	Effective 1936
Lot Area	5,000 sqft (0.115 acres)
Garage Type	Attached
Garage Area	243 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	307 W 3RD ST
City	ANTIOCH
State	CA
Zip	94509-1272
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R2
Legal Description	TOWN OF ANTIOCH LOT 2 BLK 59
Legal Subdivision	ANTIOCH
Legal Block	59
Legal Lot Number	2
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	3
Census Block	3025
Census Tract	305000

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	Company Name on Record
Mailing Address	PO BOX 3023, ANTIOCH, CA 94531-3023
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 26, 2000 · Amount on Record
Deed Sale	Apr 26, 2000 · Amount on Record
Prior Sale	Apr 26, 2000 · Amount on Record
Deed Document Number	200083692
Record Updated	Oct 29, 2026

August 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 1, 2019
Property Address	307 W 3RD ST, ANTIOCH, CA 94509-1272
Document Number	0000120994
Instrument Date	May 31, 2019
Instrument	120994
Transaction Type	Transfer
Record Updated	Aug 9, 2019
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	PO BOX 3023 ANTIOCH CA 945313023, ANTIOCH, CA 94531-3023

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		$198,347 (+2%) Land $109,728 Building $88,619
2025	$2,751.00 (+6.01%)	$194,459 (+4.04%) Land $107,577 Building $86,882
2023	$2,595.00 (+1.41%)	$186,909 Land $103,400 Building $83,509
2022	$2,559.00

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	5 in force
Nearby Flood Claims	1 (2017)
Most Recent Claim	Feb 2017 · Severe Winter Storms, Flooding, And Mudslides

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	Not rated no burnable land 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 374 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

May also be available: T-Mobile, Verizon.

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