"The interior needed to encapsulate the Les Mills experience embodied by the Unleash Yourself branding campaign," he says. "We wanted to provide an environment where that experience comes to life. Maintaining the large scale and volume of the building, for example, has ensured each fitness area has a visual connection with the rest of the gym. Each area can feed off the energy created by the different activities happening simultaneously throughout the building."
Part of this transparency is provided by the terraced link between the main levels, which forms a natural amphitheatre. In areas where the acoustics need to be separated, there are double-glazed walls and partitions.
"The space still reads as one volume, but noise transference between the fitness areas is controlled," says van Lent. "Acoustic ceilings also help reduce noise levels, and the different design of each of the suspended ceilings helps to define specific areas."
To aid navigation through the building, the key circulation route from front to back is flanked by bright yellow colourbacked glass walls, which frame selected views through the spaces.
"In places where we altered the concrete shell, we did it very deliberately, choosing contrasting, yet robust materials that amplify the difference and enhance the energy," says the architect. "The shiny yellow walls provide clear architectural clues to the layout. The internal navigation is also enhanced by other refined architectural insertions, including timber battens and pontoons, coloured ceramic tiles, and a variety of lighting techniques."