Saint-Constant or Châteauguay · city matchup · 2016-2026
Saint-Constant versus Châteauguay, figure by figure: the median price of houses and condos every year since 2016, the gap and how it moved, days on market, inventory, bidding, unsold listings and the monthly payment. Centris sales, nothing estimated.
In Saint-Constant, the median house sold for $620,000 in 2026 (Jan. to Sept.); in Châteauguay, $520,000: a $100,000 gap, Châteauguay is the cheaper of the two (19% less). In 2016, the gap was $64,750 (30%): it has narrowed. In ten years, Saint-Constant did +123% and Châteauguay +144%. In the 2026 market, a house sells in 13 days in Saint-Constant against 16 days in Châteauguay, inventory stands at 3.3 months versus 3.8 months of sales, houses go for 99% versus 99% of asking, and 21% versus 21% of listings expire unsold. Both markets are equally tight (2 indicators out of 4 each). Source: Centris (Matrix), compiled October 10, 2026.
The short answer
In Saint-Constant, the median house sold for $620,000 in 2026 (Jan. to Sept.); in Châteauguay, $520,000: a $100,000 gap, Châteauguay is the cheaper of the two (19% less). In 2016, the gap was $64,750 (30%): it has narrowed. In ten years, Saint-Constant did +123% and Châteauguay +144%. In the 2026 market, a house sells in 13 days in Saint-Constant against 16 days in Châteauguay, inventory stands at 3.3 months versus 3.8 months of sales, houses go for 99% versus 99% of asking, and 21% versus 21% of listings expire unsold. Both markets are equally tight (2 indicators out of 4 each).
Median house and condo prices, ten years side by side
| Year | House Saint-Constant | House Châteauguay | Gap | Condo Saint-Constant | Condo Châteauguay |
|---|---|---|---|---|---|
| 2016 | $277,750 | $213,000 | $64,750 | $188,000 | $175,430 |
| 2017 | $277,000 | $230,000 | $47,000 | $198,865 | $175,000 |
| 2018 | $307,903 | $238,000 | $69,903 | $207,000 | $181,950 |
| 2019 | $315,450 | $265,000 | $50,450 | $219,000 | $180,000 |
| 2020 | $375,000 | $314,000 | $61,000 | $245,500 | $203,000 |
| 2021 | $484,000 | $404,450 | $79,550 | $325,000 | $295,500 |
| 2022 | $540,000 | $470,000 | $70,000 | $360,000 | $315,000 |
| 2023 | $534,000 | $450,000 | $84,000 | $355,000 | $331,000 |
| 2024 | $553,500 | $466,000 | $87,500 | $384,250 | $335,000 |
| 2025 | $599,500 | $524,800 | $74,700 | $408,000 | $375,000 |
| 2026 (Jan. to Sept.) | $620,000 | $520,000 | $100,000 | $414,500 | $390,000 |
Median sale price by year, Single-family and Condominium categories, Centris (Matrix), September 16, 2026 query, whole municipalities. 2026: January to September.
Ten indicators, city against city
| Indicator | Saint-Constant | Châteauguay | Edge |
|---|---|---|---|
| Median house 2026 | $620,000 | $520,000 | Châteauguay (cheaper) |
| Increase 2016-2026 | +123% | +144% | Châteauguay (rises faster) |
| Median condo 2026 | $414,500 | $390,000 | Châteauguay (cheaper) |
| House sales 2025 | 255 | 467 | Châteauguay (more choice) |
| Days on market 2026 | 13 days | 16 days | Saint-Constant (sells faster) |
| Months of inventory 2026 | 3.3 months | 3.8 months | Saint-Constant (tighter) |
| Sold ÷ asking 2026 | 99% | 99% | tie (more bidding) |
| Expired listings 2026 | 21% | 21% | tie (fewer unsold) |
| Monthly payment, median house, 20% down, 25 years, 4.14% | $2,647 | $2,220 | Châteauguay (cheaper per month) |
| 20% down payment | $124,000 | $104,000 | Châteauguay (less savings) |
What the matchup says
- Price: $100,000 separate the two median houses in 2026, $427 a month in payments at 20% down. Saint-Constant costs 19% more; in 2016, it was 30%: the cheaper city is catching up.
- Speed: Saint-Constant sells in 13 days against 16 days in Châteauguay; in 2016, 54 days against 71 days. Saint-Constant is the faster.
- Supply: 255 houses sold in 2025 in Saint-Constant against 467 in Châteauguay; 3.3 months versus 3.8 months of inventory (6.3 months and 7.5 months in 2016). Châteauguay offers more choice, Saint-Constant is the tighter.
- Negotiation: houses sell at 99% of asking in Saint-Constant and 99% in Châteauguay (in 2021, 104% and 107%); 21% and 21% of listings expire unsold.
- Condos: $414,500 in Saint-Constant against $390,000 in Châteauguay in 2026 (+120% and +122% since 2016); Châteauguay is the cheaper for a condo.
- Across the 63 neighbouring-city matchups tracked, the median gap between two median houses is $110,000 (17%); the cheaper city rose faster than the other in 37 matchups, it is also the tighter in 39, and the gap narrowed in 40.
What it changes for buying or selling
For a first-time buyer, Châteauguay is the way in: $100,000 less on the median house is $427 a month and $20,000 less in down payment. But the cheaper city is also the less contested one: more inventory and a longer time to sell, time to visit twice and negotiate. For a seller in Saint-Constant, the matchup says where their buyers go when the price climbs too high; for a seller in the cheaper city, it says the buyer pool also comes from next door. Each city's ten years, year by year: home prices in Saint-Constant and home prices in Châteauguay.
How to read these figures
Every line comes from the same Centris (Matrix) series as our city pages: median sale price and sales of single-family houses and condominiums by year (September 16, 2026 query), median days on market (September 29 query), new listings and inventory (September 30), sold-to-asking ratio (September 30), expired listings (October 1), whole municipalities; 2026 counts January to September. The monthly payment assumes 20% down, 25 years and the 2026 average contracted rate (4.14%), before taxes and insurance. The condo is shown only if the city has at least 20 sales in 2026. Months of inventory divide active listings by the month's sales; under 4, a seller's market, above 6, a buyer's market.
Frequently asked questions
Saint-Constant or Châteauguay: which is cheaper?
Châteauguay: $520,000 for the median house in 2026 against $620,000 in Saint-Constant, or $100,000 less (19%). For a condo, Châteauguay is the cheaper ($390,000).
Which one rose the most?
Châteauguay: +144% in ten years against +123% for the other. Since 2021, Saint-Constant +28% and Châteauguay +29%.
Where do houses sell the fastest?
Saint-Constant: 13 days in Saint-Constant against 16 days in Châteauguay in 2026, 3.3 months versus 3.8 months of inventory. Both markets are equally tight.
Sources: Centris (Matrix), Statistics module, September 16, 29 and 30 and October 1, 2026 queries for the municipalities of Saint-Constant and Châteauguay, Single-family and Condominium categories; 2026 five-year contracted rate, Bank of Canada and Statistics Canada; compiled by the Loaa & Manseur team, aggregates only, current year partial. The 63 city matchups hub lists every comparison.
Our data series in Châteauguay, from the same Centris listings:
- Real estate statistics in Châteauguay 2026, 12 indicators and the rank
- Buyer's or seller's market in Châteauguay
- Mortgage payment on the median house in Châteauguay, ten years
- How long to sell in Châteauguay, ten years
- Condo prices in Châteauguay, ten years
Each series is recalculated from actual sales, aggregates only.
The other Châteauguay matchups:
- Saint-Jean-sur-Richelieu or Châteauguay: median house $577,000 versus $520,000 in 2026, $57,000 gap, Châteauguay the cheaper, 16 versus 16 days on market, ten years side by side
- Vaudreuil-Dorion or Châteauguay: median house $605,000 versus $520,000 in 2026, $85,000 gap, Châteauguay the cheaper, 22 versus 16 days on market, ten years side by side
Same grid, another neighbour.
Our data series in Saint-Constant, from the same Centris listings:
- Real estate statistics in Saint-Constant 2026, 12 indicators and the rank
- Buyer's or seller's market in Saint-Constant
- Mortgage payment on the median house in Saint-Constant, ten years
- How long to sell in Saint-Constant, ten years
- Condo prices in Saint-Constant, ten years
Each series is recalculated from actual sales, aggregates only.
The other Saint-Constant matchups:
Same grid, another neighbour.
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.