The architecture of the town hall is a true feast for the eyes. The central structure is dominated by a tall bell tower, flanked by two turrets connected by a decorative railing. This imposing façade, 47 meters high and 24 meters wide, is decorated with striking Gothic elements such as pinnacles and basket arches.
The large niche now houses a high relief depicting the equestrian statue of Louis XII. It is an original creation from 1869 by the sculptor Henri-Alfred Jacquemart in the realistic style so prevalent at the time. However, contrary to the usual appearance of equestrian statues during the reign of Louis XII, Henri-Alfred Jacquemart chose not to build a horse walking "à l'amble," that is, with both straight legs raised simultaneously.
On October 12, 1530, a clock was placed on the summit of the bell tower. From that time on, every quarter of an hour, she animated three wooden jaquemarts with bell hammers. The Compiègneis quickly gave them three nicknames corresponding to the enemies of the time: Langlois for the English, Flandrin for the Flemish, and Lansquenet for the Germans. Even today, they chant the life of the city by "punching the time," that is, by striking their hammer to strike the hours.