81-271 - Definitions

LAST AMENDED
8/9/2017

Center line of the street (bounding a #zoning lot#)

A line equidistant from and parallel or nearly parallel to the #street lines# on both sides of the #street#. However, for the purposes of
daylight evaluation:

(a)    on a #street# 75 feet in width, the #center line of the street# shall be considered to be a line 40 feet from, and parallel to, the #front
        lot line# of the #zoning lot#; and

(b)    on a #street# more than 100 feet in width, the #center line of the street# shall be considered to be a line 50 feet from, and parallel to,
        the #front lot line# of the #zoning lot#.

Daylight Evaluation Chart (DEC)

A graphic tool which permits objective measurements of portions of sky blocked by a #building# when it is viewed from a #vantage point#.
There are three #daylight evaluation charts# for use with #street# widths of 60 feet, 75 to 80 feet and 100 feet and over, respectively. All
#buildings# are drawn on the appropriate #daylight evaluation chart# to evaluate their compliance with the regulations of Section 81-27
(Alternate Height and Setback Regulations—Daylight Evaluation). These three #daylight evaluation charts# are in Appendix B of this
Chapter. A fourth chart in Appendix B is available for use with #qualifying sites# in the East Midtown Subdistrict, as defined in Section
81-613, with frontage along Park Avenue.

Far lot line

A #lot line# intersecting the #street line# of the #vantage street# such that, when viewed from the #vantage point#, the #zoning lot# does
not contain any #lot area# that is on the far side of and immediately adjoining the #lot line# at its intersection with the #street line#. (See
illustration of #Far Lot Line# and #Vantage Point#)




FAR LOT LINE AND VANTAGE POINT

(81-271.1)



Near lot line

A #lot line#, other than the #far lot line#, which intersects the #street line# of the #vantage street# and which defines the extent of the
#zoning lot's# continuous frontage along the #vantage street# from the #far lot line#.



Profile curve

A curved line on the #daylight evaluation chart# rising from the intersection of the curved line representing an elevation angle of 72
degrees with the vertical line at the #far lot line#. The #profile curve# is used to evaluate a #building's# obstruction of the sky as seen in
profile from the #vantage point#.



Profile encroachment

The space on the #daylight evaluation chart# which, when viewed from the #vantage point#, is on the far side of the #profile curve# and
which is blocked by the projection of the #building# on the #daylight evaluation chart#. (See illustration of #Profile Encroachment#)




PROFILE ENCROACHMENT

(81-271.2)



Vantage point

A point on the #center line of the street# bounding the #zoning lot# and located 250 feet from the intersection of the extension of the
#zoning lot's# #far lot line# with the #center line of the street#. (See illustration of #Far Lot Line# and #Vantage Point#)



Vantage street

A #street# bounding the #zoning lot# and on the center line of which a #vantage point# is located.