A. Except as provided for in subsection B of this section, in the DB district, the maximum gross floor area per building is 6,000 square feet. Multiple buildings on the same site shall be separated by a nonpenetrated fire wall as defined in the International Fire Code except that a single six-foot opening in the fire wall separating structures is permissible; provided, that each structure has an outside customer entrance accessible to the street. Each structure shall be designed to stand independent of other structures on the site (i.e., the addition or removal of any one building on a site will not require structural attachments or modifications to any other building on the site).

B. For structures existing as of the effective date of this section, additional gross floor area may be added to a structure and the total gross floor area may exceed the maximum allowed in subsection A of this section; provided, that the additional gross floor area to be added is interior to the building and does not enlarge or expand the existing building footprint. Roof modifications to accommodate the increase in interior gross floor area are allowed provided the roof modifications do not exceed the building height allowed in GHMC 17.99.510. No additional parking spaces are required to accommodate the increase in gross floor area. (Ord. 1268 § 1, 2013; Ord. 995 § 5, 2005).