The building forms a pair of blocks linked at the top by a vast directorial penthouse, spanning the 80m space between the two wings. Within the buildings, the offices of the city hall are arranged around long atriums along the facade, 30m high and bathed in daylight, filtered through immense venetian blinds.

Small meeting rooms set into the façade span the atrium at various points, floating within the space. The city authorities have welcomed this modernity, confident that it will assist the administration to function to the best international standards.