73-621 - Enlargement, change of use, or extension within buildings containing residential
uses

LAST AMENDED
2/2/2011

For a complying or #non-complying# #building# existing on December 15, 1961, or in R2X, R3, R4 or R5 Districts on June 30,
1989, and containing #residential uses#, the Board of Standards and Appeals may permit an #enlargement#, a change of #use# or
(in the case of a #mixed building#) an #extension#, provided that such #enlargement#, change of #use# or #extension# shall not
create any new #non-compliance# or increase the amount or degree of any existing #non-compliance# except as provided in this
Section.

In the districts and for the #buildings# for which an #open space ratio# is required, the #open space ratio# permitted under this
Section shall not be less than 90 percent of the #open space ratio# required under the applicable #bulk# regulations set forth in
Article II or III of this Resolution. In the districts and for the #buildings# to which a maximum #lot coverage# applies, the
maximum #lot coverage# permitted under this Section shall not exceed 110 percent of the maximum #lot coverage# permitted
under the applicable #bulk# regulations set forth in Article II or III of this Resolution. In all districts, the #floor area ratio#
permitted under this Section shall not exceed the #floor area ratio# permitted under such regulations by more than 10 percent.
In R2X, R3 or R4 Districts, the additional #floor area# permitted pursuant to this Section may be computed using a base #floor
area ratio# including the #floor area# permitted under a sloping roof with a structural headroom between five and eight feet
when such space is provided in the #building#.