Construction of two, two-storey dwellings (subject to the Townhouse and Low-Rise Code) and variation of the restrictive covenant contained in Transfer No. C870846 for Lot 3 on Plan of Subdivision 072974 by deleting the words “will not erect nor allow or permit to be erected on any one of the said lots any building other than one dwelling house having external walls of brick together with usual outbuildings” and replaced with the words “will not erect nor allow or permit to be erected on any one of the said lots any building other than not more than two dwelling houses together with usual outbuildings”