"Land Securities' latest innovative development, New Street Square consists of four impressive and highly efficient new office buildings. New Street Square uses 93 percent recycled materials from the buildings that were demolished. This is a remarkably high percentage and one that Land Securities were keen to communicate alongside other environmental messages. A temporary exhibition was established in the building where visitors are met with an avenue of silhouetted trees back lit to cast a shadow on a fabric wall. When the lighting is changed to light the trees from the front, it reveals that each has been sculpted from the materials found in skips from the demolished building. Since the launch of the campaign, 80 percent of the development has been pre-let."