The Brief The main building of the historic Electronic Data Systems campus in Plano was demolished via a controlled implosion Sunday morning. The site demolition paves the way for AT&T to build its new corporate campus near Legacy Drive and Parkwood Boulevard. Former EDS headquarters implodedThe former main building of the Electronic Data Systems (EDS) headquarters in Plano was scheduled for a controlled implosion at 8 a.m. Local authorities warned residents and business owners in the surrounding area to expect a loud noise and brief ground vibrations during the morning implosion. Temporary road closures around the Legacy Drive and Parkwood Boulevard intersection will also be in effect during the event.