Montreal’s 10 Most Expensive Homes for Sale, November 2026

The most expensive house we could confirm for sale on the Island of Montreal is still the former residence of industrialist J.W. McConnell in the Golden Square Mile, asking $29.5 million. The seven priciest homes from October all remain on Centris at the same prices, and two listings we did not carry in October join below them.

What changed since October: Compared with our October list, two homes are new and two have left. A $13.99-million house beside Westmount Park enters at No. 8, and an $11-million house in Outremont enters at No. 9. We did not list either in October and cannot say when they first went on sale. A Westmount house on Croissant Gordon cut its price by $950,000, to $9.95 million from $10.9 million, and now sits at No. 10. An Upper Westmount stone house at an unchanged $9.5 million falls to 11th, out of the top 10, and remains on Centris. The link we used for a $7.5-million Georgian-style house in Côte-des-Neiges-Notre-Dame-de-Grâce no longer opens that listing; the home no longer appears at that source.

The Bank of Canada raised its policy rate by a quarter point to 2.5 per cent on Oct. 28, and CREA reported that national sales fell 7.7 per cent from a year earlier in September as it cut its 2026 forecast for a third time. For the country’s top asking prices, see our national list.

How we built this list, and its limits: We ranked detached houses on the Island of Montreal by asking price, opening each Centris listing individually on Nov. 4, 2026. We could not view a complete island-wide ranking by price on Centris, so we rechecked every October listing and searched for others in the island’s highest-priced areas, including the Golden Square Mile, Westmount, Outremont, the Town of Mount Royal, Senneville and Baie-d’Urfé. A higher-priced listing may have been missed, and this ranking should be read with that in mind. Condos and income properties are excluded. We make no claim about who owns these homes today; the McConnell connection comes from the listing.

A note on photos: listing photos belong to the brokerages and photographers who made them, so we do not republish them. Please use the link in each entry to see the real home. The photo at the top of this story is a file photo of the former McConnell residence, the No. 1 listing, taken from the street. Photo: Xavier Comtois, Wikimedia Commons, CC BY-SA 3.0.

1. Golden Square Mile (avenue des Pins Ouest): $29,500,000

Built in 1918 to a design by American architect Charles A. Platt, this house was the residence of J.W. McConnell, according to the listing. It has 28 rooms, including 12 bedrooms, eight bathrooms and four powder rooms, on a lot of 82,493 square feet, with an elevator and parking for 15.

See the full listing and photo gallery: Sotheby’s International Realty Quebec (via Centris)

2. Upper Westmount: $21,800,000

This gated 1926 house has seven bedrooms and 6,680 square feet on a 16,071-square-foot lot. A rebuilt basement, a sunroom with a sloped glass ceiling that peaks at 20 feet and a 14-foot custom bar are among the renovations listed. It has a heated pool, city and river views and parking for 15.

See the full listing and photo gallery: Barnes Québec and RE/MAX Action (via Centris)

3. Upper Westmount: $21,000,000

A 1920 house with six bedrooms, six bathrooms and a powder room on a 12,068-square-foot lot, this home has 27 rooms, a heated in-ground pool and a two-car garage.

See the full listing and photo gallery: RE/MAX 3000 and RE/MAX Action (via Centris)

4. Senneville (Lac des Deux Montagnes): $19,800,000

Built in 1899 on a lakefront lot of more than 618,000 square feet, about 14 acres, this eight-bedroom estate has 37 rooms, an elevator, a heated indoor pool and parking for 24.

See the full listing and photo gallery: Sotheby’s International Realty Quebec (via Centris)

5. Westmount: $18,000,000

This 1912 mansion has seven bedrooms, seven bathrooms and 7,287 square feet on a 17,010-square-foot lot, with a heated in-ground pool and an eight-car garage.

See the full listing and photo gallery: RE/MAX Action and RE/MAX 3000 (via Centris)

6. Baie-d’Urfé (Lac Saint-Louis): $15,500,000

Built in 2015 on a 60,500-square-foot waterfront lot, this five-bedroom house has 29 rooms, an elevator, a heated in-ground pool and a six-car garage.

See the full listing and photo gallery: RE/MAX Action (via Centris)

7. Senneville (Lac des Deux Montagnes): $14,750,000

This 2009 lakefront house has five bedrooms and 6,312 square feet on a lot of about 422,000 square feet, with a heated in-ground pool and a four-car garage.

See the full listing and photo gallery: Abbey & Olivier (via Centris)

8. Westmount (next to Westmount Park): $13,990,000

New to this list, this European-inspired 1912 house has six bedrooms and six bathrooms on a flat 20,655-square-foot lot beside the park. It was renovated by a Montreal architect, according to the listing, and has layered landscaping, a double garage and a coach house.

See the full listing and photo gallery: RE/MAX Action (via Centris)

9. Outremont: $11,000,000

Also new to this list, this stone house with a slate roof was built in 1930 and later renovated and expanded. It has 50 rooms, including eight bedrooms, on a 15,660-square-foot lot at the foot of Mount Royal. The listing describes more than 13,000 square feet over five levels.

See the full listing and photo gallery: The Agency Montréal (via Centris)

10. Westmount: $9,950,000

Built in 1955 and substantially rebuilt and extended in 2009, this Upper Westmount house has six bedrooms on a 9,821-square-foot lot, with an in-ground pool, a double garage and a primary suite with two walk-in closets and a balcony. Its price is down $950,000 from October.

See the full listing and photo gallery: RE/MAX Action (via Centris)

Prices are asking prices from active listings checked Nov. 4, 2026, and can change at any time.

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