A person whose activity consists in the construction or substantial renovation of a residential complex on land owned or leased by that person. A builder may also be

• a person who builds or sells new mobile homes;
• a person who purchases a new residential complex in order to resell or lease it to one or more persons who will use it in the course of a business or an adventure or concern in the nature of trade;
• a person who acquires an interest in a residential complex while it is under construction or undergoing substantial renovation;
• a person who converts an immovable into a residential complex.

An individual who builds or substantially renovates a residential complex otherwise than in the course of a business or an adventure or concern in the nature of trade is not considered to be a builder.