r. 8
(1) The construction of either of the following is an exempt activity—
(a) one or two dwellings on a lot or allotment;
(b) an extension to one or two dwellings on a lot or allotment.
(2) In this regulation, a reference to the construction of one or two dwellings on a lot or allotment does not include a construction that is part of a high impact activity referred to in regulation 45.