This large edifice was erected in 1785; its steeply pitched roof pierced by two rows of dormer windows and carriage door leading to a rear courtyard make it a good representation of typical French Regime houses. An 1831 reconstruction gave it a Neoclassical appearance. The house was owned by six generations of the Papineau family, including Louis-Joseph Papineau (1786-1871), leader of the Patriot party, who lived in it periodically between 1814 and 1837.