232 Boulder Dr, Antioch, CA 94509 Property Records

Contra Costa County property record for 232 Boulder Dr, Antioch, CA 94509

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,190 sqft · built 1971
Lot Size	0.184 acres (8,025 sqft)
Owner	2 Individual Names on File
Last Sale	$630,000 (Oct 2025)
Tax Bill	$7,854 (2025)
Deeds & Mortgages	Oct 2025 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`072-042-004-1`

Property Details

APN / Parcel Number

Primary APN	`072-042-004-1`
Alternative APN	`072-042-004`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,190 sqft Living Area
Gross Area	2,636 sqft
1st Floor Area	1,230 sqft
2nd Floor Area	960 sqft

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1972
Lot Area	8,025 sqft (0.184 acres)
Lot Dimensions	108 ft deep x 75 ft wide
Garage Type	Attached
Garage Area	446 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	232 BOULDER DR
City	ANTIOCH
State	CA
Zip	94509-6206
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT 3596 LOT 55 EX MR
Legal Subdivision	RIDGEROCK PARK
Legal Tract	3596
Legal Lot Number	55
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	1
Census Block	1004
Census Tract	355109

Owner

Source: Contra Costa County records · APN 072-042-004-1

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	2 Individual Names on File
Mailing Address	232 BOULDER DR, ANTIOCH, CA 94509-6206
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 17, 2025 · Amount on Record
Deed Sale	Oct 17, 2025 · Amount on Record
Prior Sale	May 27, 2005 · Amount on Record
Deed Document Number	2025109340
Prior Transfer Date	Oct 14, 2014
Prior Transfer Doc	0000184142
Record Updated	Sep 20, 2026

October 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Oct 17, 2025
Property Address	232 BOULDER DR, ANTIOCH, CA 94509-6206
Document Number	0000109340
Map Reference	MB 112 PG 27
Instrument Date	Oct 14, 2025
Instrument	2025- 109340
Transaction Type	Transfer
Record Updated	Oct 30, 2025
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
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
Relationship	Joint Tenants
Address	232 BOULDER DR, ANTIOCH, CA 94509-6206

Mortgage

Document Number	0000109341
Date	Oct 17, 2025
Instrument	2025- 109341

Lender

Name	NEXA MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 01, 2055

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		$630,000 (-3.23%) Land $190,000 Building $440,000
2025	$7,854.00 (+5.34%)	$651,000 (+4.49%) Land $306,555 Building $344,445
2023	$7,456.00 (-0.23%)	$623,000 Land $293,000 Building $330,000
2022	$7,473.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 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

Wildfire

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

Values are read at the parcel center point; 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	2,000 / 250
Unwired Fixed Wireless	300 / 25
AT&T DSL	100 / 20

May also be available: Verizon.

Based on FCC filings for 645 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.