In Subdistricts A, B and C, the underlying provisions of Section 32-421 (Limitation on floors occupied by commercial uses) shall be modified as follows:

1. for mixed buildings where uses listed under Offices in Use Group VII are located on the same story as a dwelling unit, the limitations set forth in paragraphs (a) and (b) of such Section shall not apply; and
2. for commercial buildings, the limitation on the number of stories allocated to commercial uses in Use Groups VI through X, as set forth in Section 32-10 (USE ALLOWANCES), inclusive, shall not apply, except to breweries permitted pursuant to Section 135-12.