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 Lachine before you make an offer.
Buying a plex in Lachine
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 reviewsThe 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 glanceLachine
Population (2021)46,428
Montreal≈ 25 minutes by car from downtown via Highway 20
TransportationLachine station · Highway 20 · Lachine canal bike path
MRCAgglomération de Montréal
Investing in Lachine
Rental potential in Lachine
The transformation of the former industrial sector of Lachine-Est into an eco-neighbourhood is a project to watch closely for residential and commercial demand. The rental stock includes plexes, apartment buildings and condos. The commercial arteries of Vieux-Lachine and the proximity of Highway 20 and the airport also support commercial and industrial activity. A detailed analysis of income and expenses remains essential before any purchase.
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 Lachine 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 Lachine
- 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 Lachine, the welcome tax is approximately $11,349. Calculate it for your price →
Centris® statistics
The real estate market in Lachine
From January to September 2026, compared with the same period in 2025.
Single-family
- Median price
- $720,000 +5.9% vs. 2025
- Sales
- 89 vs. 103 in 2025
- Average time to sell
- 42 days vs. 42 days in 2025
Condo
- Median price
- $398,000 −5.2% vs. 2025
- Sales
- 137 vs. 171 in 2025
- Average time to sell
- 58 days vs. 49 days in 2025
Plex (2 to 5 units)
- Average price
- $778,196 +7.1% vs. 2025
- Sales
- 75 vs. 73 in 2025
- Average time to sell
- 52 days vs. 66 days in 2025
Source: Centris® — statistics by municipality and property type, revised on October 1, 2026. Average plex price: duplex to quintuplex.
Our favourite spot in Lachine
Parc René-Lévesque
Park and public art
Located on a peninsula at the entrance to the Lachine canal, this park offers views of the river and Lac Saint-Louis and features 22 monumental contemporary sculptures along its trails. It is an ideal starting point for a walk or a bike ride along the canal bike path.
Discover Parc René-Lévesque →“To understand Lachine, I recommend walking around the peninsula of Parc René-Lévesque: you can take in the canal, the lake and the shores that shaped the district at a glance.”
Free guide
Buying a property in Lachine, step by step
Our free guide (in French) explains how to find the best opportunities in Lachine 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
“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.”
“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!”
Frequently asked questions
Real estate in Lachine
Can the Lachine-Est project influence investment?
This eco-neighbourhood project on former industrial land is set to transform the area. It is prudent to follow the planning stages published by the City before making a decision, without assuming any effect on prices.
What is the average price of a plex in Lachine?
In January to September 2026, 75 plexes (from duplexes to quintuplexes) were sold in Lachine, at an average price of $778,196 (source: Centris®). The right price for a building depends mostly 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 Lachine?
For an $800,000 plex, roughly $11,349 based on the City of Montreal'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 Lachine?
A free, no-obligation comparative analysis based on recent sales in your area.
Neighbouring areas