(g) Up to seven unrelated students enrolled at a single accredited college or university occupying a student apartment, as such term is defined in the New York city building code, and maintaining a common household pursuant to a lease, sublease, or occupancy agreement directly with such college or university, provided that:
(i) The entire structure in which the dwelling unit is located is fully sprinklered in accordance with chapter 9 of the New York city building code; and
(ii) Such occupancy does not exceed the maximums contained in subdivision a of section 27-2075; and
(iii) Prior to commencement of such occupancy, and on an annual basis thereafter such college or university has submitted a fire safety plan containing fire safety and evacuation procedures for such dwelling unit that is acceptable to the fire commissioner and in compliance with any rules promulgated by the fire commissioner; and
(iv) The dwelling unit complies with additional occupancy and construction requirements as may be established by rule by the department of housing preservation and development or its successor.
A common household is deemed to exist if every member of the family has access to all parts of the dwelling unit. Lack of access to all parts of the dwelling unit establishes a rebuttable presumption that no common household exists.