In contrast to the curved surface on the river side, the southwest façade is an uncompromisingly rectangular glass-clad curtain wall. It faces a large square public space that opens in the direction of the Île de la Cité and Notre Dame.
In contrast to the curved surface on the river side, the southwest façade is an unyieldingly rectangular glass-clad curtain wall. It faces a large public space oriented towards the Île de la Cité and Notre Dame.