Steven Holl Architects has received two awards from the American Institute of Architects New York Chapter for two schemes designed by the practice.
The schemes include the Horizontal Skyscraper in Shenzhen, China, and the Knut Hamsun Center in Hamarøy, Norway.
The Horizontal Skyscraper is built using cable-stay bridge technology and is suspended on eight cores each separated by 50m. Its tension cables can carry 3,280t in load.
The structure was completed in 2009, and incorporates many sustainable concepts such as a grey-water system, a solar-panelled green roof and tsunami-proof architecture, and features an open public landscape.
The building received China's first LEED platinum certification and the Best Green Project award from the Good Design is Good Business China Awards for 2010, the company said.
The Knut Hamsun Center was completed in August 2009, and is inspired from local architecture.
The structure's design is complemented by the use of space and light, and features exhibition areas, a library and reading room, a cafe and an auditorium. The roof garden features Norwegian sods while its exterior is clad in stained black wood.