The Colvin Center Annex at Oklahoma State University is a premier facility with four basketball courts with a synthetic playing surface. It can seamlessly convert into volleyball courts, making it a favorite spot for intramural sports. The annex recently underwent a $5 million renovation, enhancing its amenities with natural light and air conditioning, making it an ideal location for small conferences and workshops. Located at 101 Colvin Center, the Colvin Center Annex is part of the Department of Wellness and is a versatile space for various recreational activities.