1867 Mount Conness Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 1867 Mount Conness Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,196 sqft · built 1999
Lot Size	0.164 acres (7,161 sqft)
Owner	2 Individual Names on Record
Last Sale	$670,000 (Mar 2023)
Tax Bill	$7,494 (2025)
Deeds & Mortgages	Mar 2023 Transfer Mar 2023 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`055-480-009-4`

Property Details

APN / Parcel Number

Primary APN	`055-480-009-4`
Alternative APN	`055-480-009`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,196 sqft Living Area
1st Floor Area	1,259 sqft
2nd Floor Area	937 sqft

Exterior

Year Built	Built 1999
Effective Year Built	Effective 1999
Lot Area	7,161 sqft (0.164 acres)
Garage Type	Attached
Garage Area	716 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	1867 MOUNT CONNESS CT
City	ANTIOCH
State	CA
Zip	94531-7494
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T8181 L489
Legal Subdivision	BLACK DIAMONKNOLLS XV SUB 8181
Legal Tract	8181
Legal Lot Number	489
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	1
Census Block	1009
Census Tract	355120

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	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Mar 21, 2023	Intrafamily Transfer, Transfer ACCOMODATION, ACCOMMODATION
Mar 21, 2023	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Mar 27, 2020	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 21, 2023 · Amount on Record
Deed Sale	Mar 21, 2023 · Amount on Record
Prior Sale	Mar 27, 2020 · Amount on Record
Deed Document Number	202325870
Prior Transfer Date	Mar 18, 2023
Prior Transfer Doc	0000025872
Record Updated	Oct 29, 2026

March 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 21, 2023
Property Address	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494
Document Number	0000025872
Map Reference	MB 404 PG 41
Instrument Date	Mar 18, 2023
Instrument	2023-025872
Transaction Type	Transfer
Record Updated	Mar 29, 2023
Title Company	ACCOMODATION, ACCOMMODATION

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1329 SOUTHGATE AVE, DALY CITY, CA 94015-3938

March 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 21, 2023
Property Address	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494
Document Number	0000025870
Map Reference	MB 404 PG 41
Instrument Date	Mar 17, 2023
Instrument	2023-025870
Transaction Type	Transfer
Record Updated	Mar 29, 2023
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO

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
Relationship	Community Property
Address	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494

Mortgage

Document Number	0000025871
Date	Mar 21, 2023
Instrument	2023-025871

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2053

March 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 27, 2020
Property Address	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494
Document Number	0000059451
Map Reference	MB 404 PG 41
Instrument Date	Mar 12, 2020
Instrument	2020-059451
Transaction Type	Transfer
Record Updated	Nov 3, 2022
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	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1867 MOUNT CONNESS CT, ANTIOCH, CA 94531-7494

Mortgage

Document Number	0000059452
Date	Mar 27, 2020
Instrument	2020-059452

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2050

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		$655,000 (+0.77%) Land $235,000 Building $420,000
2025	$7,494.00 (+16.29%)	$650,000 (+15.15%) Land $240,000 Building $410,000
2023	$6,444.00 (+1.61%)	$564,481 Land $210,235 Building $354,246
2022	$6,342.00

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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	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 611 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

May also be available: T-Mobile, Unwired.

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