Photo: New York YIMBY
Work

7-9 East 30th Street

From One Lot to Two: How a Design Pivot Shaped a 250-Foot NoMad Residence

This 24-story, 250-ft tall residential building was developed by Castellan Real Estate Partners and SWA Architecture is the architect of record. The building features 54 residential units and associated amenity spaces above ground-level retail spaces. The façade of the building features an akimbo, mixed-material curtain wall comprised of glass and gray metal cladding. Above a setback at the eighth floor, a crescendo series of balconies and irregular bars of windows widen at each successive level.

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Location:
New York, New York
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Area:
44,134-sf
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Size:
3
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Units:
54 units
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Service:
Structural
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Industries:
Multi-Family Residential, Mixed-Use
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Primary Material:
Concrete, Steel

The structural system is cast-in-place flat-slab concrete supported by a deep pile foundation. Special stepped foundations were designed around the perimeter to avoid as much as possible underpinning the adjacent properties.

The project had been originally designed on one of the two adjacent lots as a 21-story residential building. The original building design had a slenderness ratio exceeding 10:1, requiring special lateral system design and column hardening / key element analysis, as well as a peer review triggered by the NYC Building Code requirements. The project was redesigned after the developer acquired the adjacent lot.

Project Highlights

  • 15 affordable housing units
  • 41,992 square feet with 54 residences and 2,142 square feet of ground-level retail space

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