Château Saint-Antoine

Saint-Antoine-sur-Richelieu, Quebec, Canada, Canada

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Château Saint-Antoine is a distinctive historic mansion in Saint-Antoine-sur-Richelieu, Quebec, built around 1897 for Louis-Joseph Cartier and commonly called Château Louis-Joseph-Cartier; its design shows a rare Moorish-inspired style with red brick masonry, turrets, decorative arches and ornate window lintels reflecting the architect’s North African influences.

The house has served varied local roles across its history—private residence, medical offices, and later a restored venue—before being converted and maintained as an events and hospitality site hosting weddings, banquets and dining since the late 20th century. Located at 1000 Chemin du Rivage in Saint-Antoine-sur-Richelieu, the property is listed in Quebec’s cultural heritage register and remains a visual landmark along the Richelieu River, valued for both its architectural uniqueness and community significance.