“Horizontal and Vertical Enlargement of a “Sliver” Building”
Pilla, D. & Tong, X. (2013) & Wilde, J. (2015)
This article addresses lessons learned and industry best practices associated with the design of horizontal and vertical enlargements to “sliver” buildings. The term “Sliver Building,” according to the New York City zoning code, is specifically reserved for a tall building or enlargement that is 45 feet wide or less, in an R7-2, R7X, R8, R9 or R10 zoning district, such buildings are generally restricted to a height equal to the width of the abutting street or 100 feet, whichever is less. These unique and challenging sites often present issues pertaining to structural stability due to its narrow width when resisting lateral loads.