Dismantling and reassemble the Sources pavilion? A proven but expensive solution. Heritage buildings have already been moved in the past, such as the facade of the former Gare du Nord de Paris, today in Lille.
In Toulouse, a drastic solution was imagined for the city's war memorial, inaugurated in 1928. Weighing 950 tonnes, too fragile to be dismantled end by end, it was moved in its entirety this summer. Moved 35 meters, the building will return to its place in 2027.