Monday, November 9, 2009


HL23
The High Line, Manhattan
Neil Denari

HL23 is a new project that lurches over the historic railroad right of way known as the High Line, at West 23rd Street. This area is currently being transformed into a trendy, modern neighborhood park. HL23 will consist of 14 floors of luxury condominiums as well as a number of other amenities.
The tapering form of the building was due largely to site constraints, as well as to create a sense of drama while providing opportunity for striking views. The building sits upon a plot of land only 40 ft. wide, resulting in a slew of design challenges. The structure is constructed of steel with diagonal bracing, so as to require minimal column support, giving more space to the open, usable plan.
The façade consists of some of the largest single-pane windows ever used in residential high-rise construction, at 11 ft. tall by 6 ft. wide, creating vistas from the units that range from 38 to 45 ft. within the units. White ceramic skin and steel are used in order to cover the building in selected areas, so as to provide privacy for residents, while recessing in others in order to provide uninterrupted panoramic views. Heat pumps and high-efficiency boilers will be used in order to earn the structure a LEED Gold certification.
HL 23 has received much acclaim and criticism for its contribution to the High Line, but the building appears to be an artful, elegant solution to a rather stringent set of constraints and challenges. While trendiness and sculptural form seem to take precedence over contributing to the street experience of the developing High Line, it stands to reason that HL 23 can serve as an icon for the area for many years to come.













































































































































































































































































































































































































































































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