(b) A structure or building, including the land appurtenant, that is located in the District in which one or more rental units as defined in § 42-3501.03(33) are established after July 17, 1985, shall subsequently be defined as a “housing accommodation” for the purposes of this chapter. If any rental unit in such a housing accommodation is not otherwise exempted by one of the provisions of § 42-3502.05 , the rent charged for the initial leasing period or the first year of tenancy, whichever is shorter, shall be determined by the housing provider and is considered to be the equivalent of making the computations specified in § 42-3502.06 . (c) Repealed. (d) Repealed.