House or plex · Saint-Jean-sur-Richelieu · 2016-2026
The house and the plex in Saint-Jean-sur-Richelieu set face to face over ten years: which costs more, which rose the most, which sells fastest and negotiates the least, and what the door is worth. Centris sales, nothing estimated.
In Saint-Jean-sur-Richelieu, the median single-family house sold for $577,000 from January to September 2026 and the median plex for $690,000: the plex is worth 1.20 times the house, against 1.29 times in 2016. In ten years, the house gained +148% and the plex +130%: the house rose faster. The house sells in 16 days in median and the plex in 18 days, more slowly; the house goes at 99% of asking, the plex at 98%. Per unit, the duplex comes to $278,000, 52% below the house. Source: Centris (Matrix), compiled October 13, 2026.
The short answer
In Saint-Jean-sur-Richelieu, the median single-family house sold for $577,000 from January to September 2026 and the median plex for $690,000: the plex is worth 1.20 times the house, against 1.29 times in 2016. In ten years, the house gained +148% and the plex +130%: the house rose faster. The house sells in 16 days in median and the plex in 18 days, more slowly; the house goes at 99% of asking, the plex at 98%. Per unit, the duplex comes to $278,000, 52% below the house.
House or plex in Saint-Jean-sur-Richelieu: prices year by year
| Saint-Jean-sur-Richelieu | Median house | Median plex | Plex ÷ house | House days | Plex days | Sales house / plex |
|---|---|---|---|---|---|---|
| 2016 | $233,000 | $300,000 | 1.29 | 67 days | 68 days | 898 / 81 |
| 2019 | $273,500 | $305,000 | 1.12 | 37 days | 75 days | 1,075 / 115 |
| 2021 | $419,000 | $425,000 | 1.01 | 12 days | 28 days | 1,028 / 198 |
| 2023 | $475,000 | $470,000 | 0.99 | 25 days | 42 days | 720 / 122 |
| 2025 | $555,000 | $634,950 | 1.14 | 20 days | 32 days | 928 / 146 |
| 2026 (Jan. to Sept.) | $577,000 | $690,000 | 1.20 | 16 days | 18 days | 615 / 67 |
Median sale price, median days on market and number of sales, Single-family and Income property categories, municipality of Saint-Jean-sur-Richelieu, Centris (Matrix); 2026 = January to September.
The house rose faster than the plex in Saint-Jean-sur-Richelieu: +148% against +130% in ten years, +38% against +62% since 2021. The plex-to-house ratio went from 1.29 to 1.20: at its highest 1.29 in 2016, at its lowest 0.99 in 2023. The plex cost more than the house 10 years out of eleven; it is above it in 2026. In dollars, the house gained $344,000 and the plex $390,000 between 2016 and 2026. It is in line with the 23 cities tracked (median ratio 1.20).
Days on market and negotiation
In 2016, the house sold in 67 days in Saint-Jean-sur-Richelieu and the plex in 68 days; in 2026, 16 days and 18 days. The plex was slower than the house 9 years out of eleven. Against asking, the house sells at 99% and the plex at 98% in 2026: the plex buyer negotiates more. The house sold above asking in median 2 years (peak 104% in 2021), the plex no year (peak 99% in 2022): bidding wars are a house matter. The detail is in plex days on market in Saint-Jean-sur-Richelieu and plex sold over asking in Saint-Jean-sur-Richelieu.
The duplex's door against the house
The total price misleads: the median duplex ($556,000) costs 4% less than the median house, but per unit it comes to $278,000, 52% below the house. The cheapest door in Saint-Jean-sur-Richelieu is the quadruplex's ($165,250). That is what the investor buys: housing at wholesale price, paid in part by tenants. The duplex against the triplex is in duplex or triplex in Saint-Jean-sur-Richelieu in 2026.
What the ranking says in Saint-Jean-sur-Richelieu
- Saint-Jean-sur-Richelieu ranks 12th out of 23 cities for the plex-to-house ratio in 2026 (1.20); the median of cities is 1.20, against 1.26 in 2016, and the ratio fell in 15 cities.
- Across the 23 cities tracked, the house gained +133% in ten years in median and the plex +116%; the plex rose faster in only 8 cities. It costs more than the house in 22 cities in 2026, and every year since 2016 in 12.
- The plex sells more slowly than the house in 16 cities in 2026 (13 days against 11 in median of cities), and further below asking than the house in 15 (98% against 99%); bidding wars touched the house at least one year in 14 cities, the plex in 0.
- The duplex's door is below the median house price in 23 cities out of 23 ($250,000 in median, -49%).
For whom: the family or the investor
The house, for the family that wants its lot and no tenant: in Saint-Jean-sur-Richelieu, it sells faster than the plex and closer to the asking price, which means less room to negotiate when buying, and a simpler resale. The plex, for whoever accepts a tenant upstairs or downstairs in exchange for a rent that pays part of the mortgage, and for the investor who counts in price per door: $278,000 against $577,000 for the house. An owner-occupied plex is bought with 5% down up to $500,000 (duplex) or 10% (triplex, quadruplex); without living in it, 20%. The trade-off is management, the Tribunal administratif du logement and leases that set the income: the median says nothing about those of the building you are looking at. The complete file is in investing in a plex in Saint-Jean-sur-Richelieu in 2026, and the house alone in home prices in Saint-Jean-sur-Richelieu 2016-2026.
How to read these figures
Comparing the house and the plex of Saint-Jean-sur-Richelieu compares two products bought by different people: the median house is a residence, the median plex a building of two units or more, often older, that is paid for with its rents. The price per unit divides the duplex median by two: it compares different floor areas, not equivalent units.
Frequently asked questions
Does a plex cost more than a house in Saint-Jean-sur-Richelieu?
Yes: $690,000 against $577,000 in median in 2026, or 1.20 times the house. But per unit, the duplex comes to $278,000.
Which one rose the most in ten years in Saint-Jean-sur-Richelieu?
The house: +148% against +130% for the plex between 2016 and 2026. Across the 23 cities tracked, the plex rose faster than the house in 8 cities.
Which one sells fastest in Saint-Jean-sur-Richelieu?
The house: 16 days against 18 days for the plex in 2026. The plex is slower than the house in 16 cities out of 23.
House or plex for a first purchase in Saint-Jean-sur-Richelieu?
The house if you do not want a tenant; the plex if a rent that pays part of the mortgage is worth the management, because the door costs $278,000 against $577,000 for the house in Saint-Jean-sur-Richelieu, and 5% down is enough on an owner-occupied duplex (up to $500,000). In both cases, the FHSA, the HBP and the Quebec credit apply to a first home.
Sources: Centris (Matrix), Statistics module, September and October 2026 queries for the municipality of Saint-Jean-sur-Richelieu, median sale price and sales by year (Single-family, Income property), median days on market and sold-to-asking ratio by year, duplex type; compiled by the Loaa & Manseur team on October 13, 2026, aggregates only. The house or plex in Quebec, 23 cities hub compares the 23 cities.
Our other plex series in Saint-Jean-sur-Richelieu, from the same Centris listings:
Each series is recalculated from actual sales, aggregates only.
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.