The recently completed New Balance World Headquarters just earned LEED Platinum certification , and it's the first building of its kind in the U.S. to earn points in indoor environmental quality under the USGBC rating system. The building was designed by Elkus Manfredi Architects, who worked in collaboration with Transwestern and John Moriarty Associates to deliver a remarkable, energy-efficient design using sustainable construction techniques, regionally-sourced materials and water-conserving plumbing.