The Natatorium was completed in 1982. Counsilman-Hunsaker served as the design consultant for the project. The architects were Browning, Day, Pollack & Mullins, Inc. and Edward Larabee Barnes, Architects. The construction project received funding from
Lilly Endowment Inc., and
Krannert Charitable Trust.
Hugh J. Baker and Company, fabricator of reinforcing steel and concrete, created the structural supports used in the Natatorium construction. The construction was completed in the summer of 1982 alongside the
Michael A. Carroll Track & Field Stadium leading into the
National Sports Festival. The project cost a total of $21.5 million. The
F.A. Nihelm Company was contracted to build the three pools; a 76-foot by 56-foot diving pool, a 50-meter 8-lane competition pool, and a 6-lane instructional pool. The
IU School of Physical Education, now known as the
School of Health and Human Sciences, moved into the facility following its completion. The Natatorium was featured in the November 1983 issue of the
American School and University Magazine for receiving the Louis I. Kahn citation due to its architectural design. In 1993, the Natatorium went through major renovations to update the facility for major athletics events. A new floor made of
polyvinyl chloride (PVC) was installed in the movable area, and the hydraulics were repaired. The filter system located in the bottom is unique since the water is filtered through channels underneath the metal strips on the pool floor which also act as lane markers. This design significantly reduces water turbulence and resistance. These were removed and the filters were completely cleaned. Over 10,000 new stainless-steel screws reinstalled the metal strips. In 1995, the Natatorium was closed for the summer for a $1.2 million renovation project to replace the filtration system. By 2012, the School of Physical Education and Tourism Management shared facilities at the IU Natatorium. The building is divided into deck, concourse and bridge levels, covering approximately 200,000 gross square feet. The deck level contains weight-training and conditioning rooms, a 50-meter competitive pool, a diving pool, and a 50-meter instructional pool. A research suite for exercise physiology and biomechanics is also located on the deck level. The concourse level of the physical education wing contains a large gymnasium, an auxiliary gymnasium, racquetball courts, and the Informal Learning Laboratory. The bridge level contains the administrative and faculty offices. In 2016, the Natatorium was renovated to update the entire facility to better serve a variety of sports events of different sizes. The project was completed in time to host the 2016 U.S. Olympic Team Trials for Diving. The facility was host to the USA Olympic Diving Trials in 1984, 1988, 1992, 1996, 2008, 2016, and 2020. It hosted the USA Olympic Swimming Trials in 1984, 1992, 1996, and 2000. In addition, the Natatorium building houses the IUPUI Recreation Program in the basement of the facility, including the Polaris weight room which was built in 1996. Popularly known as IUPUI, this facility has been host to numerous other swim events including the 1982
National Sports Festival, the
1987 Pan American Games, 2001
World Police and Fire Games, NCAA Championships,
USA Swimming National Championships,
Big Ten Conference Championships, and
Big East Conference Championships. Additionally, in July 2009, IUPUI hosted one of USA Swimming's most elite competitions, the 2009 ConocoPhillips National Championships. As part of the agreement for being selected to host the 2016
USA Diving Olympic Trials, the Natatorium underwent roughly $18 million in renovation and repairs before 2016. The project included a new roof, improved climate control, lighting, skylights, and other mechanical repairs. According to local television station
WTHR in 2014, "the venue cost $21 million to build in 1982, and would cost nearly $75 million to replace." In 2020, the School of Health and Human Sciences’ physical education program celebrated its 150-year anniversary with the addition of a new fitness garden outside the south entrance of the Natatorium. The new fitness garden features 33 fitness stations, picnic tables, benches, and greenspace. The School of Physical Education and Tourism Management first began planning this project in 2015. ==Notable events==