Château Vaudreuil (French pronunciation: [ʃato vodʁœj]) was a stately residence and college in Montreal, Quebec, Canada.
Completed in 1726, it was built in the classical style of the French Hôtel Particulier by King Louis XV's chief engineer in New France, Gaspard-Joseph Chaussegros de Léry.
The central building was flanked by two wings with two sets of semi-circular stairs leading up to a terrace and the main entrance.
This canny deal made by the merchants had the effect of increasing the value of the adjacent properties built around the 'square', which remained in private hands.
[3] In 1809, Nelson's Column was built by the citizens of Montreal in what had been part of the Château's formal gardens.