Notices of deterioration in Montréal: check an address before you buy
Figures from the open data of October 29, 2026.
When an owner does not do the work required to bring a building back into good condition (structure, roof, sanitation), the Ville de Montréal can register a notice of deterioration in the land register. The notice describes the work to be done and stays registered until a notice of regularization.
Our pages find 37 addresses with a notice of deterioration. Boroughs with the most: Montréal-Nord (9), Le Plateau-Mont-Royal (6), Rosemont-La Petite-Patrie (4), Mercier-Hochelaga-Maisonneuve (3), Villeray-Saint-Michel-Parc-Extension (3), Ahuntsic-Cartierville (2).
Why it matters to a buyer
- The notice is in the land register: it follows the building and the buyer takes over the required work.
- Your lender or insurer may ask questions.
- If the work is still not done, the law lets the City go further, up to acquiring the building.
What to ask
- The seller: the list of required work, what was done, the invoices, and a confirmation from the City.
- Your notary: the status of the notice in the land register.
- Your inspector: the real condition of what the notice covers.
More about notices of deterioration · To check an address, use the address search.
General information, not legal or professional advice.
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