Crystals, the retail and entertainment precinct area of the CityCenter development in Las Vegas, US, has become the world’s largest retail district to receive the LEED+ Gold Core and Shell certification from the US Green Building council (USGBC) for its sustainable design.

The CityCenter building was designed by US practice Studio Daniel Libeskind and is expected open in December 2009.

Crystals features radiant floor cooling, skylights offering natural light, all-wood products, efficient water fixtures that save an estimated 1.8 million gallons of water and parking for users with alternative fuel vehicles.

The Crystals exterior is covered by a glass canopy welcoming natural light into the three-level development.

Rockwell Group designed the interiors of the precinct.

CityCenter has been accredited with LEED Gold certifications for various developments such as the ARIA Resort’s hotel tower, convention centre and theatre, and the Vdara Hotel.