3. A lot or part of a lot contiguous to a residential site built upon before the date of the coming into force of the designated agricultural region decree and whose area is less than the minimum area required under the municipal by-laws or the regulations made under the Environment Quality Act (chapter Q-2) may be alienated or subdivided without the authorization of the commission to be used to enlarge the residential site so that it complies with the smallest area required under those by-laws or regulations or 3,000 m2. If the residential site in question is in front of a river, the maximum area allowed is 4,000 m2.
This provision only applies where no part of the residential site in question has been alienated or subdivided under section 101 or 103 of the Act since the date of the coming into force of the designated agricultural region decree and where, at that date, the owner of the residential site in question was not the owner of a lot that was contiguous or deemed to be contiguous under the Act.