Each lot shall provide for interior yard space in an area equal to at least 30 percent of the lot area. This interior yard space shall be completely open from ground to sky except for a patio or pergola or the projections of those items referred to in sections 16-304 through 16-307. The interior yard space shall be located in an area between the required front yard setback and the rear property line. Each interior yard space area shall have a minimum dimension of 15 by 15 feet. The interior yard space shall be completely separate from any area required for automobile circulation. Twenty-five percent of the required interior yard space may be on decks if such decks have a minimum dimension of ten feet and a minimum of 200 square feet, and are directly accessible from the units served. All decks shall be open to the sky except for allowed roof projections and shall be provided with flooring and railings suitable for outdoor activity.
(`64 Code, Sec. 34-67.4) (Ord. No. 1037, 1862, 1866, 2152)