S . ▁Green ▁Building ▁Council ▁( US G BC ) ▁launched ▁its ▁Le ad ership ▁in ▁Energy ▁and ▁Environment al ▁Design ▁( LE ED ) ▁cert ification ▁program , ▁D PR ▁was ▁awarded ▁its ▁first ▁green ▁project : ▁a ▁ 1 1 0 , 0 0 0 - sq .- ft . ▁campus ▁for ▁As pect ▁Communic ations , ▁a ▁global ▁provider ▁of ▁un ified ▁communic ations ▁and ▁collaboration ▁services ▁and ▁software . ▁Design ed ▁by ▁William ▁Mc Don ough ▁+ ▁Part ners ▁ ▁and ▁Form 4 ▁Arch itect s ▁and ▁completed ▁in ▁ 2 0 0 1 , ▁the ▁headquarters ▁ ▁was ▁then ▁tout ed ▁as ▁the ▁green est ▁structure ▁in ▁San ▁Jose , ▁California . ▁ ▁In ▁ 2 0 0 3 , ▁D PR ' s ▁Sac r amento ▁regional ▁office ▁became ▁the ▁first ▁priv ately ▁owned ▁LE ED - cert ified ▁building ▁in ▁California ' s ▁Central ▁Valley . ▁ ▁In ▁ 2 0 1 0 , ▁D PR ' s ▁San ▁Diego ▁regional ▁office ▁became ▁the ▁first ▁commercial ▁building ▁to ▁achieve ▁both ▁LE ED - NC ▁Pl atin um ▁and ▁net - zero ▁energy ▁status ▁in ▁San ▁Diego . ▁ ▁In ▁April ▁ 2 0 1 3 , ▁D PR ▁acquired ▁Atlanta - based ▁Hard in ▁Const ruction ▁Company ▁L LC . ▁In ▁May ▁ 2 0 1 3 , ▁D PR ' s ▁LE ED - NC ▁Pl atin um ▁Phoenix ▁regional ▁office ▁became ▁the ▁largest ▁building ▁in ▁the ▁world ▁to ▁achieve ▁net - zero ▁energy ▁building