Section 26-505. Application to multiple family complex

For purposes of
  this chapter a class A multiple dwelling shall be deemed  to  include  a
  multiple  family  garden-type maisonette dwelling complex containing six
  or more dwelling units having common  facilities  such  as  sewer  line,
  water  main,  and  heating  plant, and operated as a unit under a single
  ownership on May sixth,  nineteen  hundred  sixty-nine,  notwithstanding
  that  certificates of occupancy were issued for portions thereof as one-
  or two-family dwellings.
    * NB Expires April 1, 2012