The new building was designed by Jacques Paul Lequeux in the neoclassical style, built in ashlar stone and was officially opened in November 1849.

The two central bays featured a pair of doorways, flanked by fluted Doric order pilasters supporting a frieze and an entablature.

At roof level, above the two central bays, there was a curved pediment containing a coat of arms and, behind it, a square clock tower with an ogee-shaped dome and a bell-cote.

Two large paintings by Gaston Balande, portraying allegories of abundance & peace and of work, were installed in the commissions room in the early 1930s.

[7] During the Paris insurrection of 19 August 1944, part the Second World War, a Spanish soldier, Eustaquio Pino, and some 30 members of the French Forces of the Interior seized the town hall.