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Back 323 Dennison Dr
Off Market

323 Dennison Dr

O'Fallon IL 62269

4
4
2
3060 sq. ft.
13939.2 sq. ft.
Single-Family
Caleb DavisCaleb Davis, last sold this property on 11 March 2026 after 36 days on market.

Overview

Welcome home to this spacious 4-bedroom, 3.5-bath property perfectly positioned on a desirable corner lot in the heart of O'fallon. Designed for both everyday living and entertaining, the main level features a formal dining room plus an open-concept kitchen, dining, and living room combination that creates a warm, connected living space. The primary suite offers a relaxing retreat with an en-suite bath featuring dual vanities, a stand-alone shower, and a separate soaking tub. Additional highlights include a built-in bookshelf, main-floor laundry room with shelving and utility sink and two kitchen pantries for exceptional storage. Downstairs, the fully finished basement expands your living space and includes a full bathroom, ideal for guests, recreation, or a home office setup. Outside, enjoy a fenced, spacious backyard—perfect for pets, play, or outdoor gatherings. A 2-car attached garage, a mix of hardwood flooring and carpeting, and a functional, well-thought-out layout complete this move-in-ready home. Conveniently located and full of space, this one checks all the boxes.

Features

4 bedrooms
4 bathrooms
2 carspaces
2 garage spaces
3060 sq. ft. floor area
13939.2 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 4 bedroom single-family properties sold in O'Fallon over the last 12 months, the estimated median property value of 323 Dennison Dr is $349k.

Median value
$349k
Estimated value range
$299k - $499k
Median days on market
38
Estimated value trend
-4%
decrease over the last 12 months
Average days on market is based on recent, comparable sales in O'Fallon. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 323 Dennison Dr

2026
Sold
11 Mar 2026 by Caleb Davis, of Keller Williams Marquee
2021
Sold
$335,000
20 Dec 2021 by Alexandra Anderson, of Strano & Associates
2016
Sold
Undisclosed
09 Jun 2016 by Frank Arnold, of Coldwell Banker Brown Realtors

Happy sellers in O'Fallon

97%
97% of sellers in O'Fallon reported that their sale price either exceeded or met their price expectations.

O'Fallon stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 6 reviews in O'Fallon over the last 12 months.

Local market activity for 4 bedroom single-family properties in O'Fallon

In the last 12 months, 187 four-bedroom single-family properties similar to 323 Dennison Dr, have been sold.

This represents a 14% increase in four-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in O'Fallon

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Christie Gassen

Sellers who recommend Christie Gassen have praised them for being local expert, clear communication, responsive, supportive, patient, and dedicated

  •   5   (33 reviews)
  •  4 Reviews in O'Fallon
  •  7 Sales in O'Fallon
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Dexter Wuller

Dexter Wuller is a recommended agent for O'Fallon.  They have 5 local sales and collected 1 local review across the last 12 months.

  •   5   (33 reviews)
  •  1 Review in O'Fallon
  •  5 Sales in O'Fallon
View profile
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Dana Kent

Dana Kent is an award winning recommended agent for O'Fallon.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   5   (32 reviews)
  •  1 Review in O'Fallon
  •  1 Sale in O'Fallon
View profile
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Lisa Whitacre

Lisa Whitacre is a recommended agent for O'Fallon.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   5   (8 reviews)
  •  1 Review in O'Fallon
  •  1 Sale in O'Fallon
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