4035 Mount Day Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 4035 Mount Day Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,997 sqft · built 2001
Lot Size	0.124 acres (5,396 sqft)
Owner	2 Individual Names on Record
Last Sale	$615,000 (Mar 2026)
Tax Bill	$4,923 (2025)
Deeds & Mortgages	Mar 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`055-620-067-3`

Property Details

APN / Parcel Number

Primary APN	`055-620-067-3`
Alternative APN	`055-620-067`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,997 sqft Living Area
1st Floor Area	936 sqft
2nd Floor Area	1,061 sqft

Exterior

Year Built	Built 2001
Effective Year Built	Effective 2001
Lot Area	5,396 sqft (0.124 acres)
Garage Type	Attached
Garage Area	478 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	4035 MOUNT DAY CT
City	ANTIOCH
State	CA
Zip	94531-8279
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T8247 L67
Legal Subdivision	8247 SANDHILL UNIT 1
Legal Tract	8247
Legal Lot Number	67
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	1
Census Block	1001
Census Tract	355118

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	4035 MOUNT DAY CT, ANTIOCH, CA 94531-8279
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 24, 2026 · Amount on Record
Deed Sale	Mar 24, 2026 · Amount on Record
Prior Sale	Jun 6, 2001 · Amount on Record
Deed Document Number	202628736
Record Updated	Oct 29, 2026

March 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 24, 2026
Property Address	4035 MOUNT DAY CT, ANTIOCH, CA 94531-8279
Document Number	0000028736
Map Reference	MB 418 PG 14
Instrument Date	Mar 17, 2026
Instrument	2026- 028736
Transaction Type	Transfer
Record Updated	Apr 2, 2026
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE 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	Joint Tenants
Address	4035 MOUNT DAY CT, ANTIOCH, CA 94531-8279

Mortgage

Document Number	0000028737
Date	Mar 24, 2026
Instrument	2026- 028737

Lender

Name	CROSSCOUNTRY MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	VA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2056

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		$415,880 (+2%) Land $145,999 Building $269,881
2025	$4,923.00 (+6.28%) Homeowner's exemption	$407,727 (+4.04%) Land $143,137 Building $264,590
2023	$4,632.00 (+1.56%) Homeowner's exemption	$391,896 Land $137,580 Building $254,316
2022	$4,561.00

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	Moderate above 51% of the US · lower than 70% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 675 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

May also be available: Unwired.

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