512 Mercer Court O'Fallon IL 62269 | For Sale | Active Under Contract

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512 Mercer Court

O'Fallon, IL 62269

$420,000
3,300 SQFT

5

3.5

How do you
like this property?

Welcome home to this spacious and well-maintained 5-bedroom, 4-bath residence located in a desirable subdivision within the highly sought-after O’Fallon School District. This home offers a flexible floor plan with generous living spaces perfect for everyday living and entertaining. The bright and inviting living room features warm flooring and a cozy fireplace, while neutral finishes throughout provide a move-in-ready feel. Brand new carpet and paint throughout! Enjoy outdoor living on the covered deck overlooking the backyard—ideal for relaxing or hosting gatherings. A newer roof (just 2 years old) adds peace of mind and value. With ample bedroom and bathroom space, this home easily accommodates growing households, guests, or work-from-home needs. Conveniently located near schools, parks, shopping, and dining, this property combines comfort, functionality, and location. Don’t miss the opportunity to make this beautiful home yours!

Listing Provided By

Julie Heltne of Re/Max Signature Properties

Property Details

Property Details

Essentials

Property Type

Residential

Status

Active Under Contract

Property Sub-Type

Single Family Residence

MLS #

26033659

Year Built

2002

Bedrooms

5

Living Area

3,300 Square Feet

Bathrooms (Full)

3

Bathrooms (Half)

1

Source

MARIS MLS - Mid America Regional Information Systems.

Show All Details

Interior

Number of Fireplaces

1

Fireplace Description

Living Room

Basement

Partially Finished, Full, Radon Mitigation, Sleeping Area, Sump Pump

Above Grade Sq. Ft.

2,500

Below Grade Sq. Ft.

800

Laundry Features

Main Level

Utilities

Heating

Natural Gas

Cooling

Central Air

Electric

Ameren

Sewer

Public Sewer

Utility Features

Cable Available

Water Source

Public

Construction

Architectural Style

Traditional

New Construction

No

Year Built

2002

Parking

Attached Garage

Yes

Garage Spaces

3

Exterior

Lot Size

0.23 Acres

Lot Features

Back Yard

Private Pool

No

Location

City

O'Fallon

Subdivision

Clarys Grove 3rd Add

Zip

62269

County

St. Clair

State

IL

Senior Community

No

Schools

Elementary School

OFALLON DIST 90

Middle/Jr. High School

OFALLON DIST 90

High School

OFallon

High School District

O Fallon DIST 90

Financials

Property Taxes

0

Tax Year

2025

HOA

Yes

HOA Amenities

None

HOA Fee

$50

HOA Fee Frequency

Annually

Dates

Listed

05/29/26

Latest Update

06/02/26 6:31am

Days on this Site

3

Price Changes

$420,000 05/29/2026

Cumulative Days on Market

3

Additional Information

Listing Office Name

Re/Max Signature Properties

Listing Office MLS ID

B421

Location

MORTGAGE CALCULATOR

estimated

monthly payment

Purchase Price

30-Yr Fixed

20%

Interest Rate

Estimated Property Taxes

Homeowner's Insurance

HOA Dues

Private Mortgage Insurance

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928 Saint Nicholas Drive

O'Fallon IL 62269

O'Fallon

$390,000
2,176 Sqft

3 3

MLS # 26031367

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Listing information © 2026 Mid America Regional Information Systems, Inc. Information from third parties deemed reliable but not verified.