933 Basalt Ct, Antioch, CA 94509 Property Records

Contra Costa County property record for 933 Basalt Ct, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,601 sqft · built 1982
Lot Size	0.31 acres (13,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$620,000 (Dec 2021)
Tax Bill	$7,930 (2025)
Deeds & Mortgages	Dec 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`068-584-003-5`

Property Details

APN / Parcel Number

Primary APN	`068-584-003-5`
Alternative APN	`068-584-003`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,601 sqft Living Area
1st Floor Area	1,601 sqft

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1983
Lot Area	13,500 sqft (0.31 acres)
Garage Type	Attached
Garage Area	512 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	933 BASALT CT
City	ANTIOCH
State	CA
Zip	94509-5194
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	T05511 L0682 B
Legal Subdivision	SUBDIVISION 5511
Legal Tract	05511
Legal Lot Number	682
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2009
Census Tract	308001

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	2 Individual Names on Record
Mailing Address	933 BASALT CT, ANTIOCH, CA 94509-5194
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 13, 2021 · Amount on Record
Deed Sale	Dec 13, 2021 · Amount on Record
Prior Sale	Jul 29, 2014 · Amount on Record
Deed Document Number	2021337404
Prior Transfer Date	Jan 26, 2015
Prior Transfer Doc	0000017304
Record Updated	Oct 29, 2026

December 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 13, 2021
Property Address	933 BASALT CT, ANTIOCH, CA 94509-5194
Document Number	0000337404
Map Reference	MB 238 PG 1
Instrument Date	Dec 8, 2021
Instrument	2021-337404
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	933 BASALT CT, ANTIOCH, CA 94509-5194

Mortgage

Document Number	0000337405
Date	Dec 13, 2021
Instrument	2021-337405

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2052

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		$671,106 (+2%) Land $216,485 Building $454,621
2025	$7,930.00 (+10.68%)	$657,948 (+10.21%) Land $212,241 Building $445,707
2023	$7,165.00 (-3.67%)	$597,000 Land $193,000 Building $404,000
2022	$7,438.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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 613 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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