NASA recently conducted a major overhaul to be used on the Orion Program. Much of the facility in Florida was built and designed for “space race” era technology. The new overhaul will accommodate new spacecraft that will not just focus on NASA, but also on commercial vehicles.
The Ground Systems and Development and Operations Program will pave the way for space exploration and future missions. Check out this great video below showcasing some of the construction. You can see a shot of the cleanroom at 1:39.