Plex · Duplex or triplex · Terrebonne · 2026
The duplex and the triplex in Terrebonne in 2026, set against the house: what each door changes to the price, the down payment and the time to sell, with Centris figures, nothing estimated.
In Terrebonne in 2026, the median duplex sells for $642,900 ($321,450 per unit) and the triplex for $800,000 ($266,667 per unit), against $599,000 for the single-family house: the duplex costs 7% more than the house, the triplex 34% more. The triplex costs $157,100 more than the duplex (+24%) for one more door, and its door comes 17% cheaper. The duplex makes 47% of plex sales, the triplex 40%; it takes $39,290 of minimum down payment to live in the median duplex and $80,000 for the triplex. The plex sells in 15 days in median, at 99% of asking. Source: Centris (Matrix), compiled October 13, 2026.
The short answer
In Terrebonne in 2026, the median duplex sells for $642,900 ($321,450 per unit) and the triplex for $800,000 ($266,667 per unit), against $599,000 for the single-family house: the duplex costs 7% more than the house, the triplex 34% more. The triplex costs $157,100 more than the duplex (+24%) for one more door, and its door comes 17% cheaper. The duplex makes 47% of plex sales, the triplex 40%; it takes $39,290 of minimum down payment to live in the median duplex and $80,000 for the triplex. The plex sells in 15 days in median, at 99% of asking.
Duplex or triplex: the price in 2026
| Terrebonne, sales from Jan. to Sept. 2026 | Single-family house | Duplex | Triplex |
|---|---|---|---|
| Median price | $599,000 | $642,900 | $800,000 |
| Price per unit | $599,000 | $321,450 | $266,667 |
| Gap with the house | +7% | +34% | |
| Sales (nine months) | 765 | 15 | 19 |
| Median price in 2016 | $260,000 | $263,500 | $402,500 |
| Ten-year change | +130% | +144% | +99% |
| Change since 2021 | +36% | +37% | +15% |
Duplex, triplex and quadruplex types of the Income property category and Single-family category, municipality of Terrebonne, Centris (Matrix); 2026 = January to September.
The duplex is the transition purchase: for $43,900 more than the median house, a unit that pays part of the mortgage. The triplex is the lived-in investment: $157,100 more than the duplex for one more door, and a price per unit 17% lower. The quadruplex is not published in Terrebonne: too few sales a year for a reliable median. In ten years, the duplex gained +144%, the triplex +99% and the house +130%. The year-by-year curves are in duplex, triplex and quadruplex prices in Terrebonne 2016-2026.
The down payment, and what the lender accepts
- Owner-occupied duplex: insured loan, minimum down payment of 5% up to $500,000 and 10% on the remainder, or $39,290 (6.1%) at the median price in Terrebonne; the second unit's rent counts in part toward your borrowing capacity.
- Owner-occupied triplex: 10% minimum, or $80,000 on the median triplex, $40,710 more than for the duplex. Insured loan possible under the $1.5 million cap.
- Without living in it: 20% minimum ($128,580 on the duplex, $160,000 on the triplex), and the lender only counts a fraction of the rents.
- First-time buyer: the FHSA, the HBP and the Quebec credit refunding the welcome tax (up to $5,875, first home, since January 1, 2026) apply to a plex you live in; the detail is in first-time home buyer in Terrebonne.
Across the 23 cities tracked, the minimum down payment of the owner-occupied triplex exceeds that of the duplex in 23 cities: the 10% rule weighs more than the price gap. In median of cities, $25,000 for the duplex and $56,950 for the triplex. The mortgage insurance premium is added to the loan: to be costed with your mortgage broker.
Where the triplex is the cheapest per door
- Terrebonne ranks 14th out of 23 cities for the step from the duplex to the triplex ($157,100, +24%); the median of cities is $133,500 (+28%). It is in line with the cities tracked.
- The triplex's door is cheaper than the duplex's in 21 cities out of 23 ($189,833 against $250,000 in median of cities, -15%); the triplex sells for less than the duplex, in total price, in 3 cities.
- Where the quadruplex is published (19 cities), it offers the cheapest door in 14 cities; the triplex offers it in 9 cities out of 23, the duplex in 0. In Terrebonne, the cheapest door is the triplex's ($266,667).
- The duplex costs more than the median house in 12 cities out of 23 (median +3%), the triplex +29%; the triplex rose faster than the duplex over ten years in 9 cities.
Days on market and negotiation
The plex in Terrebonne sells in 15 days in median in 2026 (49 days in 2016), more slowly than the house (10 days), and at 99% of asking. In other words, be ready to offer within a month, but not at the listed price: 1% of negotiation on a triplex is $8,000. Over the past twelve months, the fastest plex in Terrebonne is the one $500,000 to $750,000 (20 days), the slowest the one $750,000 to $1M (34 days). Days on market by price bracket are in plex days on market by price in Terrebonne.
The checks specific to a plex
The actual leases and their dates, the history at the Tribunal administratif du logement, the income proven by statements, the number of units matching the assessment roll, the roof, the brick, the foundations, the water entry and the electrical panel: the full checklist is in how to choose a good rental property. The complete file on the plex in Terrebonne (prices, volume, inventory, financing) is in investing in a plex in Terrebonne in 2026, and the rents of signed leases in rent in Terrebonne.
How to read these figures
Days on market and the sold-to-asking ratio are those of all plexes in Terrebonne (Income property category), not of the duplex or triplex alone: Centris does not publish days by type at this scale. The change since 2021 is calculated on the full year 2021, the ten-year change on 2016; 2026 is a partial year.
Frequently asked questions
How much does a duplex cost in Terrebonne in 2026?
$642,900 in median on sales from January to September 2026 (Centris, Matrix), or $321,450 per unit, $43,900 more than the median single-family house ($599,000).
How much does a triplex cost in Terrebonne in 2026?
$800,000 in median, or $266,667 per unit; $157,100 more than the duplex, for one more door, on 19 sales in nine months.
What down payment for a duplex or a triplex in Terrebonne?
$39,290 for the median duplex and $80,000 for the median triplex if you live in it (5% up to $500,000 then 10% on the duplex, 10% on the triplex, insured loan under the cap); 20% if you do not live in it, or $128,580 and $160,000.
Duplex or triplex in Terrebonne, which one to choose?
The duplex if the down payment is the obstacle ($39,290 against $80,000) and you want a single tenant; the triplex if you can put 10% down and want two rents to cover most of the mortgage: in Terrebonne, its door costs 17% less than the duplex's. In both cases, you buy the leases, not the median.
Source: Centris (Matrix), Statistics module, closed sales by type (duplex, triplex, quadruplex) and single-family for the municipality of Terrebonne, 2016 to September 2026 (September and October 2026 queries), median days and sold-to-asking ratio of the Income property category; mortgage insurers' financing rules, to be confirmed with your mortgage broker; compiled by the Loaa & Manseur team on October 13, 2026, aggregates only. The duplex or triplex in Quebec, 23 cities hub compares the 23 cities.
Our other plex series in Terrebonne, from the same Centris listings:
Each series is recalculated from actual sales, aggregates only.
House or plex in Terrebonne, ten years face to face:
Prices, change, days on market, negotiation, plex-to-house ratio and price per door, on Centris sales.
Our proof, not our promises
The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.
Also available in French: version française de ce guide.
Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.