Multiple Listing Service (MLS)
Learn how the Multiple Listing Service (MLS) works in Canadian real estate, and why it’s the most important tool for buying and selling homes.
May 22, 2025
What is the Multiple Listing Service (MLS)?
The Multiple Listing Service (MLS) is a cooperative database where Canadian real estate agents list properties for sale, enabling wide visibility and information sharing.
Why the Multiple Listing Service (MLS) Matters in Real Estate
MLS is the primary tool used by REALTORS® across Canada to market homes, share listings, and find properties for buyers. It aggregates comprehensive property data including:- Listing price
- Home features
- Photos and virtual tours
- Neighbourhood data
MLS offers benefits for both buyers and sellers:
- Sellers gain broad exposure to qualified buyers
- Buyers can access detailed, up-to-date listings
Understanding MLS is key to navigating the Canadian real estate market effectively, whether buying or selling a home.
Example of the Multiple Listing Service (MLS) in Action
A real estate agent lists a detached home in Ottawa on MLS. The listing appears on REALTOR.ca and attracts dozens of viewings within days.
Key Takeaways
- Central database for property listings.
- Accessible to licensed real estate professionals.
- Powers REALTOR.ca and public search platforms.
- Enhances visibility, comparability, and trust.
- Vital tool for real estate marketing and discovery.
Related Terms
- REALTOR
- Real Estate Agent
- Listing Agreement
- Exclusive Listing
- REALTOR.ca
An overview of Hedge Road Landing. (Alliance Homes)
6525 Mississauga Road and its surrounding context. (RBC Capital Markets & CBRE)
Property details for 6525 Mississauga Road. (RBC Capital Markets & CBRE)
National average resale-price growth and housing-starts growth, smoothed over three months. The comparison illustrates the cycle; it does not establish how much a price change causes construction to change.
Trailing 12-month starts in centres of 50,000 or more remove the usual monthly seasonality. Ownership combines the homeowner and condominium categories; rental is shown separately.
Six-month averages of provincial starts, expressed at annual rates. The smoothing reduces the influence of individual apartment projects.
The same August benchmark compared with two different starting points. Three-month changes are not annualized.
Average sale prices show the difference in purchase costs across markets. They do not measure affordability relative to local incomes or construction costs.
Newfoundland and Labrador remains above its pre-pandemic sales pattern, but August activity was below last year. Historical lines retain their original release vintages.
Average and median describe different aspects of the same month’s transactions. Both are affected by the mix of homes sold.
Category averages compare different homes and locations; the gaps are not estimates of the cost to upgrade an otherwise identical property.
The five categories shown account for 5,000 of the board’s 5,057 sales. The remaining 57 transactions were in other housing categories.
Monthly observations are not seasonally adjusted. Active listings count properties available at month-end; they are not construction inventory.
Average and median prices share one dollar axis. These unadjusted transaction measures do not control for changes in the homes sold.
TRREB’s 416/905 categories compare the apartments sold in each area. The difference does not isolate a location premium for equivalent units.
Highlights from the Delta Golf & Country Club listing brochure. (Colliers)