Yards, courts, vent shafts, and required unoccupied space for buildings constructed, converted or altered prior to July 26, 1958, need not be provided or increased in size if the habitable rooms and required windows opening thereon were installed under permit, or would have been permitted under the codes in effect at the time installed.
(Amended by Ord. 161-92, App. 6/4/92; Ord. 256-07, App. 11/6/2007)