Bedrooms · Rosemère · Centris 2016-2026
The median sale price of a 3-, 4- and 5-plus-bedroom house in Rosemère, year by year since 2016: what the fourth bedroom costs, what the fifth is worth, and which size rose the most. Centris figures, not estimates.
In Rosemère, the fourth bedroom is expensive: a 3-bedroom house sells for $732,500 at the median in 2026 (January to September), a 4-bedroom for $870,000, $137,500 (+19%) more, one of the widest gaps among the 52 cities tracked (rank 11). A house with 5 or more bedrooms sells for $945,500, $75,500 (+9%) more than a 4-bedroom. Since 2016: 3 bedrooms +125%, 4 bedrooms +129%, 5 or more +100%. Source: Centris (Matrix), compiled September 28, 2026.
The short answer
In Rosemère, the fourth bedroom is expensive: a 3-bedroom house sells for $732,500 at the median in 2026 (January to September), a 4-bedroom for $870,000, $137,500 (+19%) more, one of the widest gaps among the 52 cities tracked (rank 11). A house with 5 or more bedrooms sells for $945,500, $75,500 (+9%) more than a 4-bedroom. Since 2016: 3 bedrooms +125%, 4 bedrooms +129%, 5 or more +100%.
Median price by number of bedrooms, year by year
| Year | 3 bedrooms, median price | Sales | 4 bedrooms, median price | Sales | 5+ bedrooms, median price | Sales | Fourth-bedroom premium |
|---|---|---|---|---|---|---|---|
| 2016 | $326,167 | 48 | $379,950 | 64 | $471,750 | 43 | +16% |
| 2017 | $339,051 | 44 | $395,500 | 61 | $499,000 | 47 | +17% |
| 2018 | $390,000 | 50 | $440,000 | 52 | $515,000 | 41 | +13% |
| 2019 | $394,750 | 58 | $470,000 | 73 | $525,750 | 57 | +19% |
| 2020 | $485,000 | 67 | $563,000 | 93 | $629,000 | 64 | +16% |
| 2021 | $539,500 | 42 | $650,000 | 71 | $752,500 | 50 | +20% |
| 2022 | $669,000 | 30 | $772,000 | 49 | $805,000 | 44 | +15% |
| 2023 | $645,000 | 38 | $802,000 | 49 | $871,500 | 33 | +24% |
| 2024 | $569,000 | 35 | $754,950 | 59 | $883,250 | 43 | +33% |
| 2025 | $699,000 | 45 | $760,000 | 60 | $974,000 | 62 | +9% |
| 2026 (Jan. to Sep.) | $732,500 | 35 | $870,000 | 46 | $945,500 | 21 | +19% |
Closed sales on Centris from 2016 to September 2026: 492 3-bedroom houses, 677 4-bedroom and 505 with 5 or more. When a year has few sales, its median swings a lot: read the trend, not a single year.
What ten years of sales say in Rosemère
- The 4-bedroom house rose fastest (+129%, against +125% for 3 and +100% for 5 or more), as in 18 of 52 cities: the standard family format is the one in shortest supply.
- The fourth-bedroom premium is stable: +16% in 2016, +19% in 2026 ($137,500 between the two medians).
- The 5-plus-bedroom house cost more than the 4-bedroom every year since 2016: in Rosemère, the fifth bedroom belongs to large recent houses, not to converted basements.
- Share of 3-bedroom homes in sales: 31% in 2016, 34% in 2026 (over ten years: 3 bedrooms 29%, 4 bedrooms 40%, 5 or more 30%).
- 2019 to 2022, the three rock-bottom-rate years: 3 bedrooms +69%, 4 bedrooms +64%, 5 or more +53%.
- 2026 (January to September) versus 2025: 3 bedrooms +4.8% ($699,000 to $732,500), 4 bedrooms +14.5% ($760,000 to $870,000), 5 or more -2.9% ($974,000 to $945,500).
- Annual peaks: 3 bedrooms $732,500 in 2026, 4 bedrooms $870,000 in 2026, 5 or more $974,000 in 2025. The 4-bedroom house fell in 2024.
Is the fourth bedroom worth paying for in Rosemère?
In Rosemère, the fourth bedroom is a different product: $137,500 more at the median (+19%). At that price you are not buying a room, you are changing house: newer, larger, often with a garage and a wider lot. For a family that needs the bedroom, the cheaper route is often a 3-bedroom house with a basement to finish; for the seller of a 4-bedroom house, it is the argument to lead with. The fifth bedroom costs $75,500 (+9%), on 21 sales of 5 or more bedrooms from January to September 2026.
How to read these numbers
One median per year and per bedroom count, for all of Rosemère. The bedroom count comes from the Centris listing (all bedrooms, basement included) and says nothing about their size. The gap between two classes measures what the market pays for the typical house of each class, not what one more partition would add to yours. A broker evaluation settles it for one specific house.
Frequently asked questions
How much does a 4-bedroom house cost in Rosemère in 2026?
$870,000 at the median for a 4-bedroom house sold in Rosemère from January to September 2026 (46 sales), against $732,500 for 3 bedrooms and $945,500 for 5 or more.
How much is one more bedroom worth in Rosemère?
From 3 to 4 bedrooms: $137,500 (+19%) at the 2026 median. From 4 to 5 or more: $75,500 (+9%). In 2016 the fourth bedroom cost +16% and the fifth +24%.
Which house size gained the most value in Rosemère?
The house with 4 bedrooms: +129% between 2016 and 2026, against +125% for 3 bedrooms, +129% for 4 and +100% for 5 or more.
Source: Centris (Matrix), Statistics module, queries run on September 28, 2026 for the municipality Rosemère: Single-family category, number of bedrooms equal to 3, equal to 4, then 5 or more, median sale price and number of sales by year over ten years; compiled by the Loaa & Manseur team, aggregates only, current year partial. The house prices by number of bedrooms hub compares all 52 cities; home prices in Rosemère give the all-sizes series.
Our other data series in Rosemère, from the same Centris listings:
- Bungalow or two-storey home in Rosemère
- Pool, garage, year built in Rosemère
- The cheapest homes in Rosemère
Each series is recalculated from actual sales, aggregates only.
And how long it takes to sell in Rosemère:
Median days on market for houses and condos, ten years from the same Centris listings.
And the number of sales in Rosemère:
Houses, condos and plexes sold per year, ten years from the same Centris listings.
And the number of homes for sale in Rosemère:
Inventory and new listings per year, ten years from the same Centris listings.
And sale price relative to asking in Rosemère:
Bidding wars or negotiation, year by year, ten years from the same Centris listings.
And the houses that do not sell in Rosemère:
Expired listings and failure rate, year by year, ten years from the same Centris listings.
And the average house price in Rosemère:
Mean, median and asking price, year by year, ten years from the same Centris listings.
And the sales volume in Rosemère:
How many dollars change hands each year, and whether price or the number of sales rose, ten years from the same Centris listings.
And house appreciation in Rosemère:
What a house bought in each year since 2016 is worth today, ten years from the same Centris listings.
All the statistics in Rosemère at a glance:
Twelve 2026 Centris indicators, the city's rank on each, and a link to ten years of detail.
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.