Guides for Quebec home buyers

Permits, notices of deterioration, the right of first refusal, the welcome tax, lead lines, flood zones and contaminated sites: what the records say, with figures from the current data.

How to check building permits for a Montréal address
What the Ville de Montréal’s permits since 1990 show, how to read them and what to ask the seller.
Notices of deterioration in Montréal: check an address before you buy
What a City notice of deterioration is, why it follows the building and what to ask.
Montréal’s right of first refusal: what a buyer needs to know
Which buildings it covers, the City’s 60-day delay and what it changes for an offer.
Welcome tax 2026: Montréal, Québec, Laval, Gatineau, Longueuil, Sherbrooke
Each city’s brackets, how the amount is calculated, and worked examples.
Lead service lines in Montréal: check an address
Which buildings are at risk, what the City’s tests show and what to ask the seller.
Flood zones: check an address in Montréal, Québec, Laval, Gatineau, Longueuil or Sherbrooke
High and low velocity zones, what they change for building and insurance, and how many addresses are in them.
Contaminated sites: check an address before you buy in Quebec
What the environment ministry’s register holds, what it can cost and what to ask.

Glossary · How we check