Ahuntsic-Cartierville or Châteauguay: comparison for buyers
Choose two or three cities from my guides. The figures come from the same sources as the guides.
Median prices
| Ahuntsic-Cartierville | Châteauguay |
|---|
| Single-family home |
$917,50044 sales · stable year over year
|
$540,00092 sales · +2% year over year
|
|---|
| Condo |
$420,00070 sales · +1% year over year
|
last 4 quarters$383,45063 sales · +5% year over year
|
|---|
| Plex (2 to 5 units) |
$935,00071 sales · +6% year over year
|
—No published median
|
|---|
Median price = half of the properties sold for less, the other half for more. The price of a specific property varies.
Source: Centris, Q3 2026 (July to September).
Ahuntsic-Cartierville: Borough of Ahuntsic-Cartierville, Q3 2026 (July to September), change compared with the same quarter of 2025. (Centris – Ahuntsic-Cartierville statistics)
Châteauguay: City of Châteauguay, Q3 2026 (July to September), change compared with the same quarter of 2025. For condos, Centris does not publish a quarterly price due to too few transactions: the figures cover the last four quarters. For plexes, the number of sales (22 over four quarters) is too low for Centris to publish a median price. (Centris – Châteauguay statistics)
At a glance
Ahuntsic-Cartierville
- Population (2021 census)
- 135,336 residents (+1% since 2016)
- Area
- 24 km²
- Rivière des Prairies shoreline
- 15 km (Ville de Montréal)
Châteauguay
- Population (2021 census)
- 50,815 residents (+6.1% since 2016)
- Occupied private dwellings (2021)
- 19,917
- Average home value (2026 budget)
- $495,043
Transit
Ahuntsic-CartiervilleThe metro’s orange line has three stations in the borough: Henri-Bourassa, Sauvé and Crémazie. The exo 12 Saint-Jérôme line stops at the Bois-de-Boulogne and Chabanel stations, toward Lucien-L’Allier station, downtown. The exo 15 Mascouche line stops at the Sauvé (connection to the metro) and Ahuntsic stations; since January 2026, its terminus has been Côte-de-Liesse station, in Saint-Laurent, with a connection to the REM. Since November 2025, the Du Ruisseau REM station, at the Saint-Laurent boundary, has offered about 1,060 park-and-ride spaces; according to the REM, the trip to Gare Centrale takes about 14 minutes. The Parcours Gouin bike path runs along the river.
Châteauguayexo buses leave from the Châteauguay terminus for Angrignon metro station and, at rush hour, for downtown Montréal (Terminus Centre-ville). Highway 30 crosses the city. To reach Montréal, Route 138 leads to the Honoré-Mercier Bridge; an eastbound reserved lane helps avoid part of the congestion on the approach to the bridge.
Education
Ahuntsic-CartiervilleCentre de services scolaire de Montréal for French-language education and English Montreal School Board (EMSB) for English-language education. Three colleges in the borough: Collège Ahuntsic, Collège de Bois-de-Boulogne and Collège André-Grasset.
ChâteauguayCentre de services scolaire des Grandes-Seigneuries for French-language education and New Frontiers School Board for English-language education (including Howard S. Billings Regional High School, in Châteauguay). There is no cégep in Châteauguay; an exo bus line (90) serves Cégep André-Laurendeau, in LaSalle, at weekday rush hours.
Health
Ahuntsic-CartiervilleHôpital du Sacré-Cœur-de-Montréal (Cartierville) and Hôpital Fleury (Ahuntsic), part of the CIUSSS du Nord-de-l’Île-de-Montréal. CLSC d’Ahuntsic and CLSC de Bordeaux-Cartierville.
ChâteauguayHôpital Anna-Laberge, on boulevard Brisebois (Santé Québec – Montérégie-Ouest): emergency department open 24 hours a day, birthing centre, pediatrics, surgery and oncology.
Welcome tax
Ahuntsic-CartiervilleAhuntsic-Cartierville is part of the City of Montréal, so Montréal’s rates apply. In 2026: 0.5% up to $62,900, 1% up to $315,000, 1.5% up to $552,300, 2% up to $1,104,700, then 2.5%, 3.5% and 4% above $3,113,000 (rates as of October 2026, for information only). For a condo at the median price of $420,000, that comes to about $4,411; for a $935,000 plex, about $14,049. Ville de Montréal programs, such as RénoPlex, also apply.
ChâteauguayChâteauguay applies an additional bracket: 0.5% up to $62,900, 1% up to $315,000, 1.5% up to $615,600, then 3% on the portion above $615,600 (rates in effect since January 1, 2026, for information only). For a house at the median price of $540,000, below this threshold, that comes to about $6,211, the same as with Québec’s base rates. The City requires payment in a single instalment, within 30 days of the bill.
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