Every building or other structure, together with any building or structure used in connection therewith, kept, used, maintained, advertised, or held out to the public to be a place where furnished or unfurnished living accommodations other than sleeping accommodations for transient guests may be rented as a single room or as a suite of rooms, containing three (3) or more single units or suites, or both, regardless of the number of tenants therein, and regardless of whether any such room or suite of rooms is occupied by an owner or operator of such a building or structure, shall, for the purpose of this act, be deemed an apartment house.