Consequential and ancillary provision
6. Notwithstanding article 5 above, where any development was authorised development within the meaning of article 3(2) and (3) of the Special Development Order by virtue of an authorisation in writing issued by the development corporation on or before 31st March 1996, or would have been such development if carried out on or before that date, the carrying out of that development by such persons as are mentioned in the said article 3(2) shall by virtue hereof be permitted during the period beginning with 1st April 1996 and ending with 31st March 2001 subject to limitations and conditions (so far as applicable to that development) corresponding to those contained in the said Order.