For conversions

R6 R7-1 R7A R7B R7D R7X

In the districts indicated, for the creation of additional dwelling units or rooming units within existing buildings, the maximum number of accessory off-street parking spaces for which requirements are waived is 20 spaces. However, the Board of Standards and Appeals may waive requirements for a greater number of spaces in accordance with the provisions of Section 73-46 (Waiver of Requirements for Conversions).