Draft Project Impact Report - Boston Redevelopment Authority

Exeter Residences/888 Boylston
5.4 Daylight Analysis
Regulatory Context
Methodology
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Environmental.docx
These minor and brief instances of new shadows created by the proposed building
are not expected to have any measurable effect on the public use of these spaces. The
Back Bay is a densely-developed urban neighborhood with a mixture of low, mid
and high-rise buildings. The shadows created by this architectural mixture presently
create a mosaic of sun and shade from Arlington Street to Massachusetts Avenue that
change by the hour, day and season. The addition of the proposed building at 888
Boylston is consistent with the mixture of building sizes within the Boylston Street
corridor and will only add to the existing shaded conditions at the margin in a very
minor way. The minor changes are well below those that might be expected to result
in a change in public use of open space or other pedestrian areas.
The following section describes the Project’s anticipated effect on daylight
obstruction at the site. The analysis was prepared using the BRA’s Daylight Analysis
Program and has been completed in accordance with the requirements of Article 80
of the City of Boston Zoning Code. The results of the analysis are presented in
Figure 5-28 through 5-34.
Article 80, Section B(2)(c), Large Project Review – Environmental Component
anticipates the potential need for a Proponent to describe the percentage of sky plane
obstructed in the Existing and Proposed Conditions. Furthermore, the 155-feet
Zoning Height condition was also analyzed for this DPIR.
The proposed Project was analyzed using the Boston Redevelopment Authority’s
Daylight Analysis Program (BRADA) comparing the existing and proposed
conditions. This section provides a description of the methodology used for the
analysis.
DRAFT - Environmental Protection 5-27