On application, the Chairperson of the City Planning Commission may grant minor modifications to the requirements of Section 43-17 relating to joint living-work quarters for artists size, provided that the Chairperson of the City Planning Commission had administratively certified to the Department of Buildings that the division of one or more stories into joint living-work quarters for artists with an area of at least 1,200 square feet cannot be accomplished without practical difficulties because the floor area of such story, exclusive of exterior walls and common areas, is within five percent of a multiple of 1,200 square feet.

The applicant must send a copy of any request for a modification pursuant to this Section to the applicable Community Board at least 20 days prior to the next regularly scheduled Community Board meeting.