Real estate brokers who know Saint-Constant
Jasmin lives in Saint-Constant: he bought his home here in 2023. We know the streets where plexes rent well in Saint-Constant, and the building sales in the area.
Buying a plex in Saint-Constant
Duplex, triplex or multi-family building: we go over the leases and the numbers with you before you make an offer to purchase.
Jasmin lives in Saint-Constant: he bought his home here in 2023.
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 glanceSaint-Constant
Population (2021)29,954
Montreal≈ 30 minutes from downtown by car
Transportationexo stations Saint-Constant and Sainte-Catherine · Highways 30 and 730 · Routes 132 and 209
MRCMRC de Roussillon
Investing in Saint-Constant
Rental potential in Saint-Constant
The presence of two commuter train stations supports rental demand from people who travel daily to work in Montreal. The rental stock is made up mostly of plexes and small buildings, with denser projects near the stations. The commercial arteries along Routes 132 and 209 and the proximity of Highway 30 also attract retailers and service businesses. A case-by-case 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 Saint-Constant 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 Saint-Constant
- 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 Saint-Constant, the welcome tax is approximately $14,611. Calculate it for your price →
Centris® statistics
The real estate market in Saint-Constant
From January to September 2026, compared with the same period in 2025.
Single-family
- Median price
- $616,000 +3.4% vs. 2025
- Sales
- 197 vs. 194 in 2025
- Average time to sell
- 36 days vs. 35 days in 2025
Condo
- Median price
- $414,750 +2.4% vs. 2025
- Sales
- 66 vs. 64 in 2025
- Average time to sell
- 31 days vs. 31 days in 2025
Plex (2 to 5 units)
- Average price
- $879,164 +17.3% vs. 2025
- Sales
- 14 vs. 8 in 2025
- Average time to sell
- 64 days vs. 34 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 Saint-Constant
Exporail, the Canadian Railway Museum
Museum
Exporail presents one of the country's largest collections of railway equipment, with full-size locomotives and cars, including the famous CN 5702 steam locomotive. It's an ideal family outing for understanding how the train shaped the South Shore.
Discover Exporail, the Canadian Railway Museum →“When I show a house to clients who are coming from out of town, I often suggest stopping by Exporail: it explains better than any speech why Saint-Constant was built around the railway.”
Free guide
Buying a property in Saint-Constant, step by step
Our free guide (in French) explains how to find the best opportunities in Saint-Constant 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 Saint-Constant
What kind of income property is there in Saint-Constant?
You'll mainly find duplexes, triplexes and small multi-unit buildings, as well as new projects near the stations. Demand comes in large part from commuters who take the commuter train.
What is the average price of a plex in Saint-Constant?
In January to September 2026, 14 plexes (from duplexes to quintuplexes) sold in Saint-Constant, at an average price of $879,164 (source: Centris®). The right price for a building depends mainly 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 Saint-Constant?
For an $800,000 plex, approximately $14,611 according to the City of Saint-Constant’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 Saint-Constant?
A free, no-obligation comparative analysis based on recent sales in your area.
Neighbouring areas