Notman House, Heritage house in Le Plateau-Mont-Royal, Montreal, Canada

The Notman House is a two-story mansion featuring Greek Revival style architecture in Le Plateau-Mont-Royal. Its facade displays neoclassical details characteristic of mid-nineteenth century Montreal residential design.

William Collis Meredith, then a 31-year-old bachelor, commissioned John Wells in 1843 to build the house, completed in 1845 on Sherbrooke Street, then a country lane. In 1876 Alexander Molson sold it to photographer William Notman, who lived there until his death in 1891. In 1894 Sir George Alexander Drummond bought it to donate to the Sisters of Saint Margaret, who ran St. Margaret's Home for Incurables until 1991.

From 1894 the Sisters of the Society of Saint Margaret ran St. Margaret's Home for Incurables here, in a hospital wing added to plans by architect Sir Andrew Thomas Taylor and able to take 50 patients. The sisters operated it for almost a century, until 1991, when the Drummond Trusts handed responsibility to the Government of Quebec. A Université de Montréal project, Les vies de la maison Notman, now studies the patients and caretakers.

The house stands at 51 Sherbrooke Street West, near the Golden Square Mile. Since 2024 it belongs to the Trottier Family Foundation, which is turning it into the Maison Philanthropique Notman; the adjoining St. Margaret's Hospice is linked to it by a footbridge. The building is not a public museum, so check access before visiting.

The house was built almost entirely from local materials: the stone came from the region and the mortar was mixed with sand from the Saint Lawrence River, as architect John Wells required. Its portico is decorated with palmettes and rosettes. From 1894 the Sisters of the Society of Saint Margaret ran St. Margaret's Home for Incurables here, a 50-patient hospital, for nearly a century.