(1) Perimeter. The perimeter setbacks prescribed herein shall be measured from the exterior boundary of the lot or group of contiguous lots forming the planned density development site. The front, side and rear yard setbacks of the underlying zone shall be the minimum perimeter setbacks for all structures; provided, that such minimum setbacks may be increased by the Hearing Examiner if deemed necessary to protect the appropriate use and development of adjacent lands; and

(2) Interior. The minimum distance between structures within a planned density development site shall not be less than International Building Code requirements. [Ord. 4496 § 4, 2020; Ord. 3354 § 2, 1999; Code 1970 § 25.64.060.]