4723 Koala Ct, Antioch, CA 94531 Property Records

Contra Costa County property record for 4723 Koala Ct, Antioch, CA 94531

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 1,762 sqft · built 1996
Lot Size	0.114 acres (4,960 sqft)
Owner	Individual Name on Record
Last Sale	$672,000 (Aug 2021)
Tax Bill	$7,955 (2025)
Deeds & Mortgages	Oct 2020 Mortgage Aug 2021 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`053-470-036-4`

Property Details

APN / Parcel Number

Primary APN	`053-470-036-4`
Alternative APN	`053-470-036`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,762 sqft Living Area
1st Floor Area	976 sqft
2nd Floor Area	786 sqft

Exterior

Year Built	Built 1996
Effective Year Built	Effective 2002
Lot Area	4,960 sqft (0.114 acres)
Garage Type	Attached
Garage Area	460 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	4723 KOALA CT
City	ANTIOCH
State	CA
Zip	94531-8913
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T7286 L646
Legal Subdivision	SUBDIVISION 7286
Legal Tract	7286
Legal Lot Number	646
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	ANTIOCH-PITTSBURG
Census Block Group	2
Census Block	2000
Census Tract	355110

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	Individual Name on Record
Mailing Address	4723 KOALA CT, ANTIOCH, CA 94531-8913
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage SOFI LENDING CORP
Aug 17, 2021	Grant Deed, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC
Feb 23, 2018	Grant Deed, Transfer · Conventional with PMI OPES ADVISORS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 17, 2021 · Amount on Record
Deed Sale	Aug 17, 2021 · Amount on Record
Prior Sale	Feb 23, 2018 · Amount on Record
Deed Document Number	2021228439
Record Updated	Oct 29, 2026

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4723 KOALA CT, ANTIOCH, CA 94531-8913
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4723 KOALA CT, ANTIOCH, CA 94531-8913

Mortgage

Document Number	0000255041
Date	Oct 29, 2020
Instrument	2020-255041

Lender

Name	SOFI LENDING CORP
Type	Lending Institution
Address	SALT LAKE CITY, UT 84121

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Nov 1, 2040

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 17, 2021
Property Address	4723 KOALA CT, ANTIOCH, CA 94531-8913
Document Number	0000228439
Map Reference	MB 371 PG 21
Instrument Date	Aug 11, 2021
Instrument	2021-228439
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	CHICAGO 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	4723 KOALA CT, ANTIOCH, CA 94531-8913

Mortgage

Document Number	0000228440
Date	Aug 17, 2021
Instrument	2021-228440

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

February 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 23, 2018
Property Address	4723 KOALA CT, ANTIOCH, CA 94531-8913
Document Number	0000028692
Instrument Date	Feb 20, 2018
Instrument	28692
Transaction Type	Transfer
Record Updated	Mar 1, 2018
Title Company	FIDELITY NATIONAL TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$495.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4723 KOALA CT ANTIOCH CA 945318913, ANTIOCH, CA 94531-8913

Mortgage

Document Number	28693
Date	Feb 23, 2018
Instrument	28693

Lender

Name	OPES ADVISORS
Address	TROY, MI 48098

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Feb 22, 2048

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		$668,000 (-2.2%) Land $188,869 Building $479,131
2025	$7,955.00 (+11.21%)	$683,000 (+9.81%) Land $193,111 Building $489,889
2023	$7,153.00 (-6.93%)	$622,000 Land $176,000 Building $446,000
2022	$7,686.00

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 94% of the US · lower than 96% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation

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 174 locations within half a mile, as of December 31, 2025

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

May also be available: T-Mobile, Unwired.

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