20 E 15th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 20 E 15th St, Antioch, CA 94509 · Last verified July 2026

Property Highlights

Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Year Built	Built 1966
Square Footage	6,720 sqft Living Area
Lot Size	13,410 sqft (0.308 acres)
Last Sale	$475,000 (2001)
Tax Bill	$11,848.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`065-182-028-4`
Alternative APN	`065-182-028`

Interior

Total Rooms	7 Rooms
Building Area	6,720 sqft Living Area
Gross Area	1,920 sqft Gross Area
1st Floor	1,920 sqft 1st Floor
Stories	1 Stories

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1966
Lot Area	13,410 sqft (0.308 acres)

Location & Zoning

Street Address	20 E 15TH ST
City	ANTIOCH
State	CA
Zip	94509-2420
Property Usage	Residential Property Usage
Type	Residential > Multi-Unit > Apartments (5+ Units)
Legal Description	STAMM SUBN W 90 FT LOT 13
Legal Subdivision	STAMM SUB
Legal Lot Number	13
Jurisdiction	CONTRA COSTA CA
Minor Civil Division	ANTIOCH-PITTSBURG
Census Blockgroup	1
Census Block	1013
Census Tract	306003

Owner

Source: Contra Costa County records · APN 065-182-028-4

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	3471 HALFMOON CT, CONCORD, CA 94518-2231
Owner Type	Owner is a Company
Vesting	Owner is a Trust, Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jan 11, 2001 · Amount on Record
Deed Sale	Jan 11, 2001 · Amount on Record
Deed Doc Number	20017532
Last Transfer Date	Jul 19, 2016
Transfer Doc	0000145904
Record Refreshed	Sep 20, 2026

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		$730,045 (+2%) Land $215,167 Building $514,878
2025	$11,848.00 (+7.12%)	$715,732 (+4.04%) Land $210,949 Building $504,783
2023	$11,060.00 (+1.21%)	$687,941 Land $202,758 Building $485,183
2022	$10,928.00

Flood & Wildfire

20 E 15th St is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.

Flood

Source: FEMA National Flood Hazard Layer · Contra Costa County (06013C), updated October 12, 2026

FEMA Flood Zone	Zone X minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard Area	No

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

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

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