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Westmount

5,582 properties on the 2026 property assessment roll

Westmount has 5,582 properties on the 2026 property assessment roll. The most common property types are single-family home (3,488), condominium (1,311), duplex (243). The median assessed value on the roll is $1,981,600, an average increase of 137.6% over the previous roll. The median year of construction is 1921.

According to the 2021 Census, Westmount has 19,658 residents (-3.2% since 2016), with a median age of 49. 54% of households own their home. The median after-tax household income is $92,000 and the median dwelling value reported in the census was $1,800,000.

Sources: 2026 property assessment roll (MAMH) · 2021 Census (Statistics Canada).

The market by property type

Single-family home
3,488
Avg. assessment $2,714,241
Condominium
1,311
Avg. assessment $1,374,138
Duplex
243
Avg. assessment $2,271,542
Triplex
62
Avg. assessment $1,855,005
Residential
24
Avg. assessment $5,101,408
Quadruplex
23
Avg. assessment $2,329,774
Apartment building (13 units)
10
Avg. assessment $3,740,640
Apartment building (7 units)
8
Avg. assessment $3,495,988

Population trend

+1.6% since 2001

All of Westmount · annual estimates from the ISQ

202520,377 residents20012025

Population estimates as of July 1, Institut de la statistique du Québec (ISQ) (2001-2025). Recent years are revised or preliminary.

Main streets in Westmount

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Other streets in Westmount

Properties in Westmount