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(a) In the districts indicated, if a building used for permitted non-residential uses has an aggregate width of street walls equal to 60 feet or less, two side yards shall be provided, each with a minimum required width of eight feet. If such building has an aggregate width of street walls equal to more than 60 feet, two side yards shall be provided, each equal to not less than 15 percent of the aggregate width of street walls.
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(b) In the districts indicated, no side yards are required. However, if any open area extending along a side lot line is provided at any level, it shall be at least eight feet wide.
Basic Regulations - Rear Yards