404 W 12th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 404 W 12th St, Antioch, CA 94509 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 988 sqft · built 1929
Lot Size	0.115 acres (5,000 sqft)
Owner	Company Name on File
Last Sale	$75,000 (Dec 2011)
Tax Bill	$3,261 (2025)
Deeds & Mortgages	May 2021 Transfer Jul 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`067-121-004-5`

Property Details

APN / Parcel Number

Primary APN	`067-121-004-5`
Alternative APN	`067-121-004`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	988 sqft Living Area
1st Floor Area	988 sqft

Exterior

Year Built	Built 1929
Effective Year Built	Effective 1929
Lot Area	5,000 sqft (0.115 acres)
Garage Type	Attached
Garage Area	418 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	404 W 12TH ST, 406
City	ANTIOCH
State	CA
Zip	94509-2260
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SOUTH PARK ADDN LOT 11 BLK 2
Legal Subdivision	SOUTH PARK ADD
Legal Block	2
Legal Lot Number	11
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2004
Census Tract	305000

Owner

Source: Contra Costa County records · APN 067-121-004-5

Assessment roll updated July 14, 2026 · Last verified July 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 File
Mailing Address	PO BOX 883, SAN RAMON, CA 94583-5883
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
May 26, 2021	Intrafamily Transfer, Transfer
Jul 28, 2017	Intrafamily Transfer, Transfer · Conventional Mortgage ALAMEDA MORTGAGE CORP

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 22, 2011 · Amount on Record
Deed Sale	Dec 22, 2011 · Amount on Record
Deed Document Number	2011279477
Last Transfer Date	May 17, 2021
Transfer Doc	0000156107
Record Updated	Sep 20, 2026

May 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	May 26, 2021
Property Address	404 W 12TH ST, ANTIOCH, CA 94509-2260
Document Number	0000156107
Instrument Date	May 17, 2021
Instrument	2021-156107
Transaction Type	Transfer
Record Updated	Dec 19, 2025

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
Relationship	Living Trust
Address	PO BOX 883, SAN RAMON, CA 94583-5883

July 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 28, 2017
Property Address	404-406 W 12TH ST # 406, 406, ANTIOCH, CA 94509
Document Number	0000136032
Instrument Date	Jul 21, 2017
Instrument	2017-136032
Transaction Type	Transfer
Record Updated	Nov 03, 2022
Title Company	NEXTTITLE

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	404 W 12TH ST, ANTIOCH, CA 94509-2260

Mortgage

Document Number	0000136033
Date	Jul 28, 2017
Instrument	2017-136033

Lender

Name	ALAMEDA MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 01, 2047

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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

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

Year	Tax Bill	Assessed Value
2026		$244,940 (+2%) Land $102,632 Building $142,308
2025	$3,261.00 (+5.74%)	$240,138 (+4.04%) Land $100,620 Building $139,518
2023	$3,084.00 (+1.45%)	$230,815 Land $96,714 Building $134,101
2022	$3,040.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 605 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
AT&T	Fiber	5,000 / 5,000
Xfinity	Cable	2,000 / 250
Unwired	Fixed Wireless	300 / 25

May also be available at this address: AT&T, Verizon, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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