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Buying a plex in Westmount

Duplex, triplex or multi-family building: we go over the leases and the numbers with you before you make an offer to purchase.

Annie Payant & Jasmin MorinReal estate brokers · RE/MAX du Cartier
5.0 · 113 Google reviews

The Montreal market, in numbers

Annie and Jasmin each have more than 10 years of real estate experience. We analyze rents in the area and building sales in Westmount before you make an offer.

The real income

Current leases, vacant units, actual expenses: we recalculate the income before talking about price.

The multiplier and comparables

Gross income multiplier, price per door and sales of comparable buildings: is the asking price justified?

A business perspective

Trained in finance and marketing at HEC Montréal, Jasmin helps you assess a building as a business project.

At a glanceWestmount
Population (2021)19,658
Montreal≈ 10 minutes from downtown by metro from Atwater station
TransportationAtwater metro station · Route 136 · Vendôme station
MRCAgglomération de Montréal
Investing in Westmount

Rental potential in Westmount

Proximity to downtown, Dawson College and Atwater metro station supports rental demand for apartments and condos. The rental stock is concentrated mainly in the lower part of the city and near major arteries, with plexes and apartment buildings. Commercial arteries such as avenue Greene and rue Sherbrooke attract neighbourhood businesses and professional offices. Each building should be analyzed according to its income, its expenses and the municipal rules in force.

How we analyze a plex

Gross income multiplier

The asking price compared with the building's income and with plexes sold in the area.

Net income

Actual rents minus taxes, insurance, energy, maintenance and vacancy: what you really keep.

Comparable sales

Plexes recently sold in Westmount and the surrounding area, and the price per door, adjusted for the condition of the building.

Municipal assessment

The relationship between the price and the municipal assessment, to help frame an offer.

Before buying a plex in Westmount

  • The current leases and the renewal notices for each unit.
  • Vacant units and market rents in the area.
  • The condition of the building: roof, windows, plumbing, electrical and foundation.
  • The number of dwellings allowed by the zoning.
  • Municipal and school taxes, insurance and energy.
  • Financing: the down payment varies depending on the number of units and whether you live in the building.

For an $800,000 plex in Westmount, the welcome tax is approximately $14,611. Calculate it for your price →

Centris® statistics

The real estate market in Westmount

From January to September 2026, compared with the same period in 2025.

Single-family

Median price
$2,298,750 +3.8% vs. 2025
Sales
126 vs. 120 in 2025
Average time to sell
83 days vs. 90 days in 2025

Condo

Median price
$847,500 −13.5% vs. 2025
Sales
40 vs. 52 in 2025
Average time to sell
135 days vs. 73 days in 2025

Plex (2 to 5 units)

Average price
$1,771,500 −6.1% vs. 2025
Sales
5 vs. 6 in 2025
Average time to sell
105 days vs. 85 days in 2025

Source: Centris® — statistics by municipality and property type, revised on October 1, 2026. Average plex price: duplex to quintuplex.

Full statistics ·

Prices, sales and selling times by property type, compared with last year: Annie or Jasmin will send you the full Centris® report.

Our favourite spot in Westmount

Parc Westmount and the Westmount public library

Heritage park and library

Opened in 1899, the library was Quebec's first free public library, and the surrounding park is home to a 1927 greenhouse and Victoria Hall. Together they form a place to stroll where period architecture and green space complement each other.

Discover Parc Westmount and the Westmount public library →

“When I think of Westmount, I think of Parc Westmount: a library from 1899, a century-old greenhouse and children's play areas all in one place sum up the balance between heritage and family life you'll find here.”

Jasmin MorinResidential and commercial real estate broker
Free guide

Buying a property in Westmount, step by step

Our free guide (in French) explains how to find the best opportunities in Westmount and buy with complete confidence.

Part 1

Before: how to prepare well

Part 2

During: interested in a property?

Part 3

Afterwards: the steps that follow the offer to purchase

Get the buyer's guide

Buyer's guide: how to find the best opportunities in Westmount, by the Équipe Annie Payant & Jasmin Morin
They trusted us

What our clients say

5.0 · 113 Google reviews (76 for Annie, 37 for Jasmin)
“We had exceptional service from start to finish with Annie for the purchase of our first home. She was always available and answered all our questions quickly and with great clarity. Her support was impeccable: she guided us through every step with professionalism and made the process simple and reassuring.”
— Marianne Ferland, Google review · Annie Payant
“I worked with Jasmin to sell one of my condos, and I have to say he is exemplary in his professionalism. His service is truly turnkey, which made the process much easier. He knew how to offer me valuable help at every step. I recommend him without hesitation!”
— Dany Rondeau, Google review · Jasmin Morin
Frequently asked questions

Real estate in Westmount

What attracts tenants to Westmount?

Proximity to downtown, Atwater metro station and Dawson College attracts students and professionals. The shops on avenue Greene and rue Sherbrooke add to the appeal of the area.

What is the average price of a plex in Westmount?

For January to September 2026, 5 plexes (from duplexes to quintuplexes) sold in Westmount, at an average price of $1,771,500 (source: Centris®). The right price for a building depends above all on its income: always compare the multiplier and the condition of the building.

How do you calculate the return on a revenue property?

Start with the gross income multiplier (price ÷ annual income), then calculate net income: rents minus taxes, insurance, energy, maintenance and vacancy. Then compare with similar buildings sold in the area. A good purchase is judged by actual income, not expected income.

What should you check in the leases before buying a building?

Ask for a copy of every current lease and renewal notice: rent, term, services included, special agreements. Compare the rents with the market in the area and check for vacant units. Leases stay with the building: the buyer takes them on as they are.

How much is the welcome tax on a plex in Westmount?

For an $800,000 plex, approximately $14,611 according to the City of Westmount’s 2026 schedule. Plan for this amount on top of your down payment, which varies depending on the number of units and whether you live in the building.

How much is your property worth in Westmount?

A free, no-obligation comparative analysis based on recent sales in your area.