8 Onyx Ct, O Fallon, MO 63366 Property Records

St. Charles County property record for 8 Onyx Ct, O Fallon, MO 63366

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,982 sqft · built 1998
Lot Size	0.4 acres (17,424 sqft)
Owner	2 Company Names on Record
Last Sale	$22,190 (Jan 1999)
Tax Bill	$4,314 (2025)
Deeds & Mortgages	May 2021 Line of Credit Mar 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`T990300239`

Property Details

APN / Parcel Number

Primary APN	`T990300239`
Alternative APN	`2-0051-8062-00-0046.0000000`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,982 sqft Living Area
Gross Area	3,505 sqft
1st Floor Area	1,082 sqft
Basement Area	1,082 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1998
Effective Year Built	Effective 1998
Architectural Style	Bi-Level
Exterior Material	Aluminum/Vinyl
Lot Area	17,424 sqft (0.4 acres)
Terrain	Rolling
Garage Type	Attached
Garage Area	441 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	95 sqft
Patio Area	264 sqft

Utilities, Heating & Cooling

Heating Fuel	Gas
Sewer	Connected

Location & Zoning

Account Number	T990300239
Street Address	8 ONYX CT
City	O FALLON
State	MO
Zip	63366-1813
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	DIAMOND POINTE #3 LOT 46
Legal Subdivision	DIAMOND PT #3
Legal Lot Number	46
Jurisdiction	ST CHARLES MO
Township / Civil Division	O'FALLON
Census Block Group	4
Census Block	4004
Census Tract	311602

Owner

Source: St. Charles County records, as of September 10, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	8 ONYX CT, O FALLON, MO 63366-1813
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
May 21, 2021	Deed of Trust, Mortgage · Line of Credit FIRST COMMUNITY CU
Mar 31, 2020	Deed of Trust, Mortgage ENDEAVOR CAP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 7, 1999 · Amount on Record
Deed Sale	Jan 7, 1999 · Amount on Record
Deed Document Number	19991456
Deed Book / Page	2186 / 884
Last Transfer Date	Oct 16, 2023
Transfer Doc	0000043113
Record Updated	Oct 29, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ST CHARLES MO
Property Address	8 ONYX CT, O FALLON, MO 63366-1813
Transaction Type	Mortgage
Record Updated	Oct 4, 2022
Title Company	CLEAR TITLE GROUP

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	8 ONYX CT, O FALLON, MO 63366-1813

Mortgage

Document Number	0000044130
Date	May 21, 2021
Instrument	2021R-044130

Lender

Name	FIRST COMMUNITY CU
Type	Credit Union
Address	CHESTERFIELD, MO 63005

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	180 Months
Due	May 1, 2036

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ST CHARLES MO
Property Address	8 ONYX CT, O FALLON, MO 63366-1813
Document Number	0072640539
Instrument Date	Mar 31, 2020
Transaction Type	Mortgage
Record Updated	Jul 6, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	8 ONYX CT O FALLON MO 633661813, O FALLON, MO 63366-1813

Mortgage

Document Number	0072640539
Date	Apr 6, 2020
Book Page	007264/000539
Instrument	211900

Lender

Name	ENDEAVOR CAP
Type	Funding / Finance Company
Address	CHESTERFIELD, MO 63017

Agreement

Amount	Amount Recorded
Term	180 Months
Due	Apr 5, 2035

Tax Assessment & Valuation

Source: St. Charles County assessment roll, as of August 7, 2026

Property Jurisdictions

Type	Name
State	Missouri
County	St. Charles County
Municipality	O'Fallon City
Unified School District	Fort Zumwalt R-II School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$67,215 (-)	$353,761 (-) Land $66,000 Building $287,761
2025	$4,314.00	$67,215 (+10.9%)	$353,761 (+10.9%) Land $66,000 Building $287,761
2023		$60,608
2022			$318,989 Land $55,000 Building $263,989

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective August 25, 2024

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 99.1% of the US · lower than 98.2% of Missouri
Wildfire Likelihood	Under 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	OFALLON PWS serves 32,515 people · EPA ID MO6010588
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 280 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Gateway Fiber Fiber	2,000 / 2,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Wisper ISP.

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