300 E 18th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 300 E 18th St, Antioch, CA 94509

Property Summary

Property Type	Service Station (Full Service)
Details	3,310 sqft · built 1989
Lot Size	0.185 acres (8,058 sqft)
Owner	Company Name on Record
Last Sale	$2,000,000 (Mar 2020)
Tax Bill	$34,291 (2025)
Deeds & Mortgages	Mar 2020 Sale & Mortgage Nov 2019 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`068-511-013-2`

Property Details

APN / Parcel Number

Primary APN	`068-511-013-2`
Alternative APN	`068-511-013`

Interior

Total Rooms	1 Room
Stories	1 Story
Building Area	3,310 sqft Gross Area
1st Floor Area	3,310 sqft

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1989
Lot Area	8,058 sqft (0.185 acres)

Location & Zoning

Street Address	300 E 18TH ST
City	ANTIOCH
State	CA
Zip	94509-2433
Property Category	Commercial
Property Type	Commercial > Retail > Service Station (Full Service)
Legal Description	PCL MAP 135 PG 50 PCL B
Legal Tract	135PM50
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	3
Census Block	3009
Census Tract	306003

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	4150 W RUBY HILL DR, PLEASANTON, CA 94566-2230
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
Mar 16, 2020	Grant Deed, Transfer · Commercial Mortgage MISSION NATIONAL BANK
Nov 21, 2019	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MTG
Nov 21, 2019	Grant Deed, Transfer VELOCITYSBA LLC
Nov 21, 2019	Quit Claim Deed, Transfer WESTMINSTER TITLE COMPANY INC, WESTMINSTER TITLE CO INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 16, 2020 · Amount on Record
Deed Sale	Mar 16, 2020 · Amount on Record
Prior Sale	Nov 21, 2019 · Amount on Record
Deed Document Number	202049603
Prior Transfer Date	Nov 13, 2019
Prior Transfer Doc	0000209004
Record Updated	Oct 29, 2026

March 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 16, 2020
Property Address	300 E 18TH ST, ANTIOCH, CA 94509-2433
Document Number	0000049603
Map Reference	MB 135 PG 50
Instrument Date	Mar 12, 2020
Instrument	2020-049603
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
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	4150 W RUBY HILL DR, PLEASANTON, CA 94566-2230

Mortgage

Document Number	0000049604
Date	Mar 16, 2020
Instrument	2020-049604

Lender

Name	MISSION NATIONAL BANK
Type	Bank

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

November 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 21, 2019
Property Address	300 E 18TH ST, ANTIOCH, CA 94509-2433
Document Number	0000209005
Instrument Date	Nov 15, 2019
Instrument	209005
Transaction Type	Transfer
Record Updated	Dec 5, 2019
Title Company	WESTMINSTER TITLE COMPANY INC, WESTMINSTER TITLE CO INC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$220.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	6973 VILLAGE PKWY DUBLIN CA 945682405, DUBLIN, CA 94568-2405

Mortgage

Document Number	209006
Date	Nov 21, 2019
Instrument	209006

Lender

Name	UNITED WHOLESALE MTG
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	120 Months
Due	Nov 20, 2029

November 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 21, 2019
Property Address	300 E 18TH ST, ANTIOCH, CA 94509-2433
Document Number	0000209254
Instrument Date	Nov 13, 2019
Instrument	209254
Transaction Type	Transfer
Record Updated	Dec 6, 2019
Title Company	WESTMINSTER TITLE COMPANY INC, WESTMINSTER TITLE CO INC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,595.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	6973 VILLAGE PKWY DUBLIN CA 945682405, DUBLIN, CA 94568-2405

Mortgage

Document Number	209255
Date	Nov 21, 2019
Instrument	209255

Lender

Name	VELOCITYSBA LLC
Address	18881 VON KARMAN AVE # 800, IRVINE, CA 92612-1571

Agreement

Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

November 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 21, 2019
Property Address	300 E 18TH ST, ANTIOCH, CA 94509-2433
Document Number	0000209004
Instrument Date	Nov 13, 2019
Instrument	209004
Transaction Type	Transfer
Record Updated	Dec 5, 2019
Title Company	WESTMINSTER TITLE COMPANY INC, WESTMINSTER TITLE CO INC

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	6973 VILLAGE PKWY DUBLIN CA 945682405, DUBLIN, CA 94568-2405

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		$1,878,093 (+1.39%) Land $1,338,620 Building $539,473
2025	$34,291.00 (+55.28%)	$1,852,355 (+2.75%) Land $1,312,373 Building $539,982
2023	$22,083.00 (-23.44%)	$1,802,769 Land $1,261,413 Building $541,356
2022	$28,843.00

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
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding

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 741 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: Verizon.

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