For all dwelling units permitted in the various districts of this code, including, but not limited to, boarding houses, dwelling (attached), dwelling (multiple), dwelling (semi-attached), dwelling (single-family), dwelling (two-family), fraternity, sorority house, group house, housing for the elderly, multiple-family dwelling, rooming house, row dwelling and tourist home, the occupancy limitations set forth in Section PM-405.0 (PM 405-1 through PM 405.10, inclusive) of the BOCA National Property Maintenance Code/1996, as amended, shall apply, the provisions of which are adopted herein by reference. (Zoning ordinance Art. 5, § 16).