1107 E 18th St, #1143, Antioch, CA 94509 Property Records

Contra Costa County property record for 1107 E 18th St, #1143, Antioch, CA 94509

Property Summary

Property Type	Retail Stores (Personal Services, Photography, Travel)
Details	7,678 sqft · built 1988
Lot Size	0.753 acres (32,800 sqft)
Owner	Company Name on File
Last Sale	$1,425,000 (Sep 2020)
Tax Bill	$21,940 (2025)
Deeds & Mortgages	Sep 2020 Sale & Mortgage Dec 2017 Sale
Flood Zone	Zone X (minimal risk)
APN	`051-120-030-5`

Property Details

APN / Parcel Number

Primary APN	`051-120-030-5`
Alternative APN	`051-120-030`

Interior

Total Rooms	5 Rooms
Stories	1 Story
Building Area	7,678 sqft Gross Area
1st Floor Area	7,678 sqft

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1989
Lot Area	32,800 sqft (0.753 acres)

Location & Zoning

Street Address	1107 E 18TH ST, 1143
City	ANTIOCH
State	CA
Zip	94509-2187
Property Category	Commercial
Property Type	Commercial > Retail > Retail Stores (Personal Services, Photography, Travel)
Legal Description	PCL MAP 60 PG 1 PCL B & TR ADJ
Legal Subdivision	EAST 18TH STREET & HILLCREST
Legal Lot Number	1107
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2005
Census Tract	306004

Owner

1107 E 18th St, #1143 is owned by a company that bought it in September 2020.

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

Owner of Record	Company Name on File
Mailing Address	5191 DOMENGINE WAY, ANTIOCH, CA 94531-8291
Owner Type	Company

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

Date	Document
Sep 24, 2020	Grant Deed, Transfer · Commercial Mortgage UMPQUA BANK
Dec 27, 2017	Grant Deed, Transfer OTHER

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 24, 2020 · Amount on File
Deed Sale	Sep 24, 2020 · Amount on File
Prior Sale	Dec 27, 2017 · Amount on File
Deed Document Number	2020215360
Prior Transfer Date	Feb 5, 2011
Prior Transfer Doc	0000118399
Record Updated	Oct 29, 2026

September 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 24, 2020
Property Address	1143 E 18TH ST, ANTIOCH, CA 94509-2187
Document Number	0000215360
Map Reference	MB 60 PG 1
Instrument Date	Sep 16, 2020
Instrument	2020-215360
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5191 DOMENGINE WAY, ANTIOCH, CA 94531-8291

Mortgage

Document Number	0000215361
Date	Sep 24, 2020
Instrument	2020-215361

Lender

Name	UMPQUA BANK
Type	Bank
Address	ANTIOCH, CA 94509

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

December 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 27, 2017
Property Address	1143 E 18TH ST, ANTIOCH, CA 94509-2187
Document Number	0000242961
Instrument Date	Dec 20, 2017
Instrument	242961
Transaction Type	Transfer
Record Updated	Jan 5, 2018
Title Company	OTHER

Transaction

Amount	Amount on Record
Tax	$145.00
Amount Accuracy	Partial

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	2764 BREAKER LN HAYWARD CA 945451347, HAYWARD, CA 94545-1347

Tax Assessment & Valuation

The 2025 property tax bill for 1107 E 18th St, #1143 was $21,940.

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		$1,573,313 (+2%) Land $552,040 Building $1,021,273
2025	$21,940.00	$1,542,465 Land $541,216 Building $1,001,249
2023	$38,741.00 (+3.65%)	$1,482,570 Land $520,200 Building $962,370
2022	$37,376.00

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

Flood

FEMA maps place 1107 E 18th St, #1143 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 · 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	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

Wildfire risk around 1107 E 18th St, #1143 is low, with less than 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 99.8% of the US · lower than 99.8% of California
Wildfire Likelihood	Under 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 631 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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