The central featured a portico formed by a pair of Doric order columns supporting an entablature, a cornice and a balcony: there was a French door on the first floor.

[4] A memorial, designed by Joseph Cachin in the form of a 25 ft (7.6 m)-high granite obelisk, was installed in front of the town hall at the instigation of the mayor, Nicolas Collart, in 1817.

[5] The building was extended to the southwest along Rue de la Paix in the neoclassical style to a design by Francois Dominique Geufroy in the mid-19th century.

[7] A finely carved fireplace, dating from c. 1500, which was recovered from the Abbey of Notre-Dame du Vœu when it was demolished in 1841 and subsequently restored, was installed in the council chamber in 1865.

[9] Major-General J. Lawton Collins commanding the American VII Corps presented a French tricolour flag made from parachutes to the mayor, Paul Renault, for use on the town hall flagpole, on 2 July 1944.