81-663 - Daylight evaluation modifications for qualifying sites

LAST AMENDED
8/9/2017


For #buildings# on #qualifying sites# in the East Midtown Subdistrict using the daylight evaluation method of height and setback
regulations, the provisions of Section 81-27 (Alternate Height and Setback Regulations – Daylight Evaluation) are modified as follows:

(a)   for the purposes of calculating the daylight evaluation score pursuant to Section 81-274 (Rules for determining the daylight
       evaluation score):

        (1)    the computation of daylight evaluation shall not include any daylight blockage for that portion of the #building# above the
                curved line representing 70 degrees in the applicable #Daylight Evaluation Charts#, and below a height of 150 feet, as
                measured from #curb level#. However, such computation shall include the daylight blockage created by extending the lines
                representing the outermost edges of the portion of the #building# immediately above a height of 150 feet downwards to
                such 70 degree line;

        (2)    the computation of unblocked daylight squares which are below the curved line representing an elevation of 70 degrees,
                pursuant to paragraph (c) of Section 81-274, may apply along designated #streets# where #street wall# continuity is
                required;

        (3)     the profile penalty for #profile encroachment#, set forth in paragraph (a) of Section 81-274, shall not apply; and

        (4)     the provisions of paragraph (i) of Section 81-274 shall be modified to require an overall passing score of 66 percent.
                 Notwithstanding such modifications, no single #street# frontage shall have a street score of less than 66 percent;

(b)    the reflectivity provisions of Section 81-276 may be utilized to raise both an individual score and the overall score by up to six
        percentage points;

(c)    for #buildings# on #qualifying sites# with frontage along the easterly #street line# of Vanderbilt Avenue, the full width of
        Vanderbilt Avenue may be considered part of the #zoning lot# for the purposes of constructing the #daylight evaluation chart#
        pursuant to Section 81-272 (Features of the Daylight Evaluation Chart). Such modified #zoning lot# shall be constructed by
        shifting the westerly boundary of the #zoning lot# to the westerly #street line# of Vanderbilt Avenue, and by prolonging the #
        street lines# of #narrow streets# to such new westerly boundary. Such modified #zoning lot# may be utilized to create a modified
        pedestrian view along Vanderbilt Avenue and intersecting #narrow streets# provided that:

        (1)     any portion of the #building# fronting along Vanderbilt Avenue above a height of 100 feet, as measured from #curb level#,
                 is set back a minimum of 15 feet from the Vanderbilt Avenue #street line#;

        (2)     #vantage points# along Vanderbilt Avenue are taken 30 feet west of the westerly #street line# instead of the #center line of
                 the street#; and

        (3)     #vantage points# along #narrow streets# are taken from the corner of the modified #zoning lot#; and

(d)    for #buildings# with frontage along Park Avenue:

        (1)     for the purposes of establishing #vantage points# along Park Avenue to construct a #daylight evaluation chart# pursuant to
                 the provisions of Section 81-272, the definition of #center line of the street#, as set forth in Section 81-271 (Definitions),
                 shall be modified along Park Avenue to be a line 70 feet from, and parallel to, the Park Avenue #street line# of the #zoning
                 lot#; and

        (2)     for the purpose of plotting #buildings# on the #daylight evaluation chart# pursuant to Section 81-273 (Rules for plotting
                 buildings on the daylight evaluation chart), Chart 4 (Daylight Evaluation Diagram – Park Avenue) in Appendix B of this
                 Chapter shall be utilized in lieu of the chart for #streets# 100 feet or more in width.