3030 E 18th St, Antioch, CA 94509 Property Records

Contra Costa County property record for 3030 E 18th St, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	4 bd · 1 ba · 1,765 sqft · built 1939
Lot Size	0.595 acres (25,900 sqft)
Owner	Individual Name on File
Tax Bill	$1,997 (2025)
Deeds & Mortgages	Mar 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`051-230-019-5`

Property Details

APN / Parcel Number

Primary APN	`051-230-019-5`
Alternative APN	`051-230-019`

Interior

Bedrooms	4 Beds
Full Baths	1 Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	1,765 sqft Living Area
1st Floor Area	1,112 sqft
2nd Floor Area	653 sqft

Exterior

Year Built	Built 1939
Effective Year Built	Effective 1939
Lot Area	25,900 sqft (0.595 acres)
Garage Type	Attached
Garage Area	320 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	3030 E 18TH ST
City	ANTIOCH
State	CA
Zip	94509-8521
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	PEABODY SUBN POR LOT 4
Legal Subdivision	PEABODY SUB
Legal Lot Number	4
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2029
Census Tract	306002

Owner

Source: Contra Costa County records · APN 051-230-019-5

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	Individual Name on File
Mailing Address	3030 E 18TH ST, ANTIOCH, CA 94509-8521
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Oct 16, 2002
Deed Sale	Oct 16, 2002
Deed Document Number	2002375546
Last Transfer Date	Feb 15, 2018
Transfer Doc	0000033931
Record Updated	Sep 20, 2026

March 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 06, 2018
Property Address	3030 E 18TH ST, ANTIOCH, CA 94509-8521
Document Number	0000033931
Instrument Date	Feb 15, 2018
Instrument	33931
Transaction Type	Transfer
Record Updated	Mar 13, 2018

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	3030 E 18TH ST ANTIOCH CA 945098521, ANTIOCH, CA 94509-8521

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		$175,011 (+2%) Land $26,538 Building $148,473
2025	$1,997.00 (+4.12%)	$171,580 (+4.04%) Land $26,018 Building $145,562
2023	$1,918.00 (+1.7%)	$164,918 Land $25,008 Building $139,910
2022	$1,886.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	6 in force

Wildfire

Wildfire Risk	Low lower than 95% of the US · lower than 97% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable · Fiber in parts of the area	2,000 / 250
Unwired Fixed Wireless	300 / 25
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AT&T, Verizon.

Based on FCC filings for 110 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF ANTIOCH serves 116,781 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.