Comparison · Châteauguay vs Vaudreuil-Dorion · 2026
Two bridges, an $80,000 gap and two ages of house: here is how to decide between Châteauguay and Vaudreuil-Dorion by commute, budget and profile.
Châteauguay and Vaudreuil-Dorion are the two affordable suburbs west of Montreal, one south of the river via the Mercier bridge, the other at the end of the 40 and the 20, and $79,500 separate them: a $525,000 median house in Châteauguay in the second quarter of 2026 (flat year over year, +43 % in five years) in 36 days with 302 houses active (+43 %), against $604,500 in Vaudreuil-Dorion (+5 %, +27 %) in 39 days with 128 houses active. The condo costs the same ($400,000 vs $381,000). Châteauguay sells the 1960s to 1980s bungalow, the river and Île Saint-Bernard, and the widest choice in the western South Shore, with a buyer's market above $790,000; Vaudreuil-Dorion sells the new home, the stations, the shops along the 40 and the future regional hospital. The choice comes down to the bridge, new or old, and where you work.
Châteauguay is $79,500 cheaper in median ($525,000 vs $604,500) because its housing stock is older: the 1960s to 1980s bungalows and cottages of the centre and south set the median, and the recent sectors of the northwest sell at Vaudreuil's price. Vaudreuil-Dorion sells mostly new and recent, and resales there are compared with new construction. In five years, Châteauguay rose more (+43 % vs +27 %) because it started lower; year over year, it is flat while Vaudreuil rises 5 %. The condo is even ($400,000 in Châteauguay, +11 %, 47 listings; $381,000 in Vaudreuil, 119 listings). The full portraits are on best real estate broker in Châteauguay and real estate broker in Vaudreuil-Dorion.
| Segment (QPAREB, Q2 2026) | Median price | 1 year | 5 years | Days | Listings |
|---|---|---|---|---|---|
| Single-family, Châteauguay, Mercier, Léry | $525,000 | 0% | 43 % | 36 days | 302 |
| Condo, Châteauguay, Mercier, Léry | $400,000 | 11 % | 57 % | 30 days | 47 |
| Single-family, Vaudreuil-Dorion | $604,500 | 5% | 27 % | 39 days | 128 |
| Condo, Vaudreuil-Dorion | $381,000 | 1% | 31 % | 57 days | 119 |
Châteauguay sells in 36 days with 302 houses active, up 43 %, the South Shore's sharpest rise: the buyer has the choice there and compares. Vaudreuil-Dorion sells in 39 days with 128 houses. Châteauguay is a seller's market up to $790,000 (2.5 months of inventory between $260,000 and $390,000, 3.0 months up to $660,000) and a buyer's market above (11.0 months); Vaudreuil-Dorion is the seller's in every range (3.3 to 3.5 months in the middle, 7.5 months above $900,000). For a first-time buyer under $500,000, Châteauguay offers the choice; for a large home above $790,000, Châteauguay is where you negotiate. The condo goes fast in Châteauguay (30 days, thin supply) and negotiates in Vaudreuil (57 days).
| Price range (single-family, 12 months to Q2 2026) | 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 |
| Price range (single-family, 12 months to Q2 2026) | Months of inventory | Market |
|---|---|---|
| < 300K | 2.3 months | Seller |
| 300K - 450K | 3.3 months | Seller |
| 450K - 750K | 3.5 months | Seller |
| 750K - 900K | 4.9 months | Seller |
| >= 900K | 7.5 months | Seller |
Châteauguay has the Mercier bridge to LaSalle and the Sud-Ouest, the 30 toward Candiac and the 15, the 132 and the 138, the Châteauguay river and Lac Saint-Louis, Île Saint-Bernard and its wildlife refuge, old Châteauguay, the shops of boulevard Saint-Jean-Baptiste and exo buses to the Angrignon terminus; it is lived by car, with the Mercier bridge as the known congestion point. Vaudreuil-Dorion has the Vaudreuil and Dorion stations, the 40, the 30 and the 20, the shops of Cité-des-Jeunes, Vaudreuil bay on Lac des Deux Montagnes, the future regional hospital under construction and new sectors; it is lived by car, with the train as the option. Châteauguay is more bilingual than Vaudreuil-Dorion.
The full guides: living in Châteauguay and living in Vaudreuil-Dorion; the monthly picture is on the South Shore's August 2026 report and Vaudreuil-Soulanges' August 2026 report
Châteauguay, by $79,500 on the median house ($525,000 vs $604,500 in the second quarter of 2026); the condo costs the same.
Châteauguay, 302 houses active (+43 %) against 128 in Vaudreuil-Dorion.
Vaudreuil-Dorion (Vaudreuil and Dorion stations); Châteauguay has exo buses to the Angrignon terminus.
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.