House prices · Châteauguay · QPAREB Q2 2026 figures
Five hundred and twenty-five thousand dollars in median, 302 houses for sale and a high end that negotiates: here are Châteauguay's 2026 house prices, in numbers and explained.
A house in Châteauguay costs $525,000 in median in the second quarter of 2026, flat year over year and +43 % in five years, the lowest median in the western South Shore, sold in 36 days, with 302 houses active (+43 %), a seller's market up to $790,000 and a buyer's market above (11.0 months of inventory). Behind that median, the price runs from $400,000 for a 1960s to 1970s bungalow in the centre or south to more than $850,000 for a waterfront on the Châteauguay river or Lac Saint-Louis. The condo costs $400,000 (+11 %). Here are the figures by sector, what each budget buys and what makes the price.
Châteauguay (QPAREB sector 39: Châteauguay, Mercier, Léry) sold its median house for $525,000 in the second quarter of 2026, flat year over year and +43 % in five years, in 36 days (36 over twelve months), with 302 houses active. The South Shore's southwest (Saint-Constant, Sainte-Catherine: $620,000) and Candiac-La Prairie ($820,000) are its more expensive neighbours; Saint-Jean-sur-Richelieu ($509,000 in the Saint-Jean and Saint-Luc sector) is the South Shore's only cheaper city; the whole South Shore sits at $648,500 in 30 days. The monthly picture is on the South Shore's August 2026 report.
| Sector (QPAREB, Q2 2026) | House, median | 1 year | 5 years | Days | Houses active | Condo, median |
|---|---|---|---|---|---|---|
| Châteauguay, Mercier, Léry | $525,000 | 0% | 43 % | 36 days | 302 | $400,000 |
| Saint-Constant, Delson, Sainte-Catherine (neighbours) | $620,000 | 5% | 42 % | 38 days | 208 | $395,000 |
| Candiac, La Prairie | $820,000 | 4% | 33 % | 39 days | 162 | $450,000 |
| Saint-Jean-sur-Richelieu, Saint-Luc | $509,000 | -6 % | 44 % | 31 days | 98 | $350,000 |
| South Shore, all | $648,500 | 2% | 39 % | 30 days | 1 | $403,000 |
| Range | Months of inventory | Market |
|---|---|---|
| < 260K | 3.8 months | Seller |
| 260K - 390K | 2.5 months | Seller |
| 390K - 660K | 3.0 months | Seller |
| 660K - 790K | 5.8 months | Seller |
| >= 790K | 11.0 months | Buyer |
Under 4 months of inventory, the seller leads and a fairly priced house goes in three weeks; above 8 months, the buyer leads and the delay is counted in months.
Year over year, Châteauguay is flat (5 % over the trailing twelve months), while the South Shore rises 2 %: supply up 43 % weighs. In five years, +43 %, more than the South Shore (+39 %): Châteauguay started lower and attracted first-time buyers from Montreal's Sud-Ouest via the Mercier bridge. The high end turned to the buyer above $790,000.
The sector first: the river, the lake and Île Saint-Bernard are worth more than the northwest, and the northwest more than the centre and south. Then the year and the type: 1960s bungalow, 1990s cottage, 2015 home. Then condition: an up-to-date roof, windows and kitchen add; a documented foundation or drain takes away. Then, on the waterfront, the certificate of location that documents the shoreline and the flood zone. Finally the lot, the garage and the pool. Our page on how much my house is worth in Châteauguay details the method.
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 221 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.
To sell, selling a house in Châteauguay and how long to sell in Châteauguay; to buy, first-time home buyer in Châteauguay and home prices by city on the South Shore.
$525,000 in the second quarter of 2026 (flat year over year), $530,000 over twelve months, the lowest median in the western South Shore. Depending on the sector, from $400,000 for a southern bungalow to more than $850,000 for a waterfront home.
Published forecasts (Desjardins, QPAREB, CMHC) expect stable to moderately rising prices in 2027, with a policy rate around 2.75 %; a general decline is not the central scenario. What moves is the balance of power by range: the high end already negotiates in several sectors, the mid range stays the seller's.
$400,000 in median in the second quarter of 2026 (+11 %, +57 % in five years), in 30 days, with only 47 listings. See buying a condo in Châteauguay.
From the QPAREB's quarterly barometer (second quarter of 2026, published in July) for median prices, days on market, changes and months of inventory by range, and from the QPAREB's monthly statistics for the August report. The next barometer (Q3 2026) comes out in mid-October and this page will be updated.
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.
Équipe no 1 de RE/MAX Platine en 2024 et en 2025, 6e au Québec, 15e au Canada et dans le top 50 mondial au classement officiel RE/MAX. Réponse en moins de 24 heures, sept jours sur sept.