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4122-4142 Keaton Crossing O'Fallon, MO 63368 1,400 - 10,900 SF of Office Space Available

Office Spaces Missouri O'Fallon 4122-4142 Keaton Crossing

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Park Facts

Total Space Available 10,900 SF Park Type Office Park
Total Space Available 10,900 SF
Park Type Office Park

All Available Spaces(5)

Display Rental Rate as

4122-4142 Keaton Crossing
4142 Keaton Crossing Blvd
1,567 - 6,444 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2005
Building Size
13,227 SF
Building Height
1 Story
Typical Floor Size
11,988 SF
  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor, Ste 102
  • 2,498 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • Now
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 1
Interior Photo
  • Fits 7 - 20 People
  • 1st Floor, Ste 105
  • 2,379 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • Now
  • Fits 6 - 20 People
  • 1st Floor, Ste 106 B
  • 1,567 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • Now
  • Fits 4 - 13 People
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor, Ste 102 2,498 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - Now
1st Floor, Ste 105 2,379 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - Now
1st Floor, Ste 106 B 1,567 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - Now
4122-4142 Keaton Crossing
4142 Keaton Crossing Blvd
1,567 - 6,444 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2005
Building Size
13,227 SF
Building Height
1 Story
Typical Floor Size
11,988 SF

4142 Keaton Crossing Blvd - 1st Floor - Ste 102

Size
2,498 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
-
Available
Now

4142 Keaton Crossing Blvd - 1st Floor - Ste 105

Size
2,379 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
-
Available
Now

4142 Keaton Crossing Blvd - 1st Floor - Ste 106 B

Size
1,567 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
-
Available
Now
4122-4142 Keaton Crossing
4122 Keaton Crossing Blvd
3,056 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2001
Building Size
9,260 SF
Building Height
1 Story
Typical Floor Size
9,260 SF
  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor, Ste 102
  • 3,056 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • 2026-12-01
  • Fits 8 - 25 People
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor, Ste 102 3,056 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - 2026-12-01
4122-4142 Keaton Crossing
4122 Keaton Crossing Blvd
3,056 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2001
Building Size
9,260 SF
Building Height
1 Story
Typical Floor Size
9,260 SF

4122 Keaton Crossing Blvd - 1st Floor - Ste 102

Size
3,056 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
-
Available
2026-12-01
4122-4142 Keaton Crossing
4132 Keaton Crossing Blvd
1,400 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2001
Building Size
9,240 SF
Building Height
1 Story
Typical Floor Size
6,250 SF
Parking
51 Spaces
  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor, Ste 204
  • 1,400 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • Now
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 2 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 3 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 4 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 5 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 6 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 7 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 8 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 9 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 10 of 10
Interior Photo
  • Fits 4 - 12 People
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor, Ste 204 1,400 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - Now
4122-4142 Keaton Crossing
4132 Keaton Crossing Blvd
1,400 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/B
Year Built
2001
Building Size
9,240 SF
Building Height
1 Story
Typical Floor Size
6,250 SF
Parking
51 Spaces

4132 Keaton Crossing Blvd - 1st Floor - Ste 204

Size
1,400 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
-
Available
Now
1 of 1
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 1
all_floors_4122_keaton_crossing_parkway_102_o_fallon_without_dim

4142 Keaton Crossing Blvd - 1st Floor - Ste 102

4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 1
Interior Photo
Size 2,498 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out -
Available Now

  • Fits 7 - 20 People

4142 Keaton Crossing Blvd - 1st Floor - Ste 105

Size 2,379 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out -
Available Now

  • Fits 6 - 20 People

4142 Keaton Crossing Blvd - 1st Floor - Ste 106 B

Size 1,567 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out -
Available Now

  • Fits 4 - 13 People

4122 Keaton Crossing Blvd - 1st Floor - Ste 102

Size 3,056 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out -
Available 2026-12-01

  • Fits 8 - 25 People
1 of 10
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 10
204 - Layout
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 2 of 10
204 - Reception
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 3 of 10
204 - Reception_2
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 4 of 10
204 - Reception Desk
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 5 of 10
204 - Restroom
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 6 of 10
204 - Break Area
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 7 of 10
204 - Exam Room
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 8 of 10
204 - Exam Room
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 9 of 10
204 - Office
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 10 of 10
204 - Office

4132 Keaton Crossing Blvd - 1st Floor - Ste 204

4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 1 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 2 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 3 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 4 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 5 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 6 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 7 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 8 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 9 of 10
Interior Photo
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 10 of 10
Interior Photo
Size 1,400 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out -
Available Now

  • Fits 4 - 12 People

Park Overview

SEE AGENTS FOR MOVE-IN SPECIAL BEFORE OCTOBER 31ST, 2026! Keaton Crossing Business Park offers a professional and highly accessible setting in the heart of O’Fallon’s thriving commercial corridor. This well-maintained office and medical office complex features multiple buildings designed for flexibility, with suites ideal for medical practitioners, professional services, and small businesses alike. Each suite offers functional layouts with high-end finishes and ample on-site parking. The property provides convenient access to Highway K, I-64/40, and nearby retail and dining amenities, including major national and local tenants within walking distance.

Attachments

4122-4142 Keaton Crossing
1 1
Fairly walkable
50/100
Exceptionally drivable
90/100
Fairly bikeable
50/100
Source: Local Logic®
(314) 307-9336

Still interested?

Contact the brokers for more information about this property

Contacts

  • Listing ID: 38255873

  • Date on Market: 2026-08-25

  • Last Updated:

  • Address: 4122 Keaton Crossing Blvd, O'Fallon, MO 63368

The O'Fallon St Charles Office Property at 4122 Keaton Crossing Blvd, O'Fallon, MO 63368 is currently available. Contact Realty Exchange Commercial Group for more information.

PROPERTIES IN NEARBY NEIGHBORHOODS

1 of 12
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View Street
Map
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Primary Photo- Image 1 of 12
4122 Keaton Crossing Blvd
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Building Photo- Image 2 of 12
4132 Keaton Crossing Blvd
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 3 of 12
204 - Reception
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 4 of 12
204 - Reception Desk
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 5 of 12
204 - Exam Room
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 6 of 12
204 - Office
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Floor Plan- Image 7 of 12
204 - Layout
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Building Photo- Image 8 of 12
4142 Keaton Crossing Blvd
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 9 of 12
103 - Reception
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Interior Photo- Image 10 of 12
103 - Reception
4122 Keaton Crossing Blvd, O'Fallon, MO for lease Floor Plan- Image 11 of 12
103 - Layout
1 of 1
4122-4142 Keaton Crossing | O'Fallon, MO 63368
(314) 307-9336 x

4122-4142 Keaton Crossing | O'Fallon, MO 63368

Sam Vandergriff
(314) 307-9336

Ken Wedberg
(314) 374-6670

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