In 2016, major expansion work was launched, as the 60,000-person capacity was no longer sufficient for the more than 200,000 visitors who strolled through each year.
The renovation project by Jean-Paul Philippon (the architect who helped transform the Gare d'Orsay into a museum) included the creation of a new 1,600 m2 wing, the renovation of 700 m2 of the existing museum, the creation of a room devoted to the history of Roubaix, a gallery dedicated to the history of modern sculpture and a second room for temporary exhibitions.
After a weekend of festivities, La Piscine closed its doors in April 2018 for a period of 6 months in order to refurbish all the spaces (such as those newly reserved for the textile collection or artistic workshops for young audiences). This enabled a major restoration, inventory and installation project to be carried out without disturbing the public.