Building site and construction or reconstruction of buildings

No piece of land shall be used as a site for the construction of a building and no building shall be constructed or reconstructed otherwise than in accordance with the provisions of this Act and of any rules or bye-laws made thereunder relating to the use of building-sites or the construction or reconstruction of buildings: Provided that the Government may in respect of all municipalities or with the consent of the municipal council in respect of any particular municipality or portion thereof, exempt all buildings or any class of buildings from all or any of the provisions of this Chapter or rules and bye-laws.