Rosemère is a thin, expensive and illiquid market. Those three characteristics go together, and they completely change how you buy or sell here.
Rosemère by the numbers
| Single-family | Sales | Median price | Average days on market |
|---|---|---|---|
| Q3 2026 | 26 | not published | not published |
| Last 4 quarters | 141 (-17%) | $877,722 (+10%) | 40 |
Source: Centris real estate statistics for Rosemère, third quarter of 2026 and the cumulative last four quarters. Centris does not publish a statistic when there are too few transactions for it to be reliable, which is the case for Rosemère over a single quarter.
That is the measure of this market: 141 house sales in a year, 17% fewer than the year before. With so few transactions, a single sale moves the median. A serious evaluation is therefore done sale by sale and street by street, not on an average.
Structurally limited supply
The city chose to preserve its large lots and tree cover rather than densify. The result: little new construction, few available lots, and housing stock made up mostly of single-family homes on lots you no longer find at this distance from Montreal.
That scarcity supports prices, but it has a flip side: transaction volume is low. In some sectors, a handful of properties sell in a year.
Why online estimates fail here
An algorithm needs comparables. In Rosemère they are scarce and often unsuitable: two properties of the same floor area can have completely different lots, orientations and condition.
In practice, I widen the analysis to neighbouring cities when necessary, then adjust for the market difference. It is manual work, but it is the only way to reach a defensible price.
What to check here
Shoreline buffers and flood zones for properties near the Rivière des Mille Îles.
The condition of mature trees, which are a real asset but also a maintenance cost and sometimes a risk to the foundation or roof.
Septic systems and wells, for unconnected properties.
Selling in Rosemère
The clientele is narrow, so the marketing has to be precise: professional photography, showcasing the lot, and a price that reflects real comparables rather than aspiration.
The comparative analysis is prepared at no charge and tell you frankly what needs correcting before listing.
For a buyer, the closing costs calculator will show you what to plan for beyond the down payment.