Cable company Comcast had been looking for possible new headquarters space in anticipation of the end of its lease in Centre Square in 2006. Comcast was looking for more than of office space and developers were actively courting the company for their developments. Comcast was the only employer in the city with major expansion plans at the time. Comcast was considering staying in Centre Square, while also contemplating moving their headquarters to the new Cira Centre building or One Pennsylvania Plaza. Comcast was spread out over 10 floors in two buildings at Centre Square and wanted space on contiguous floors. In January 2004, Liberty Property Trust unveiled a redesign for the building. The redesign turned One Pennsylvania Plaza into a 60-story, tower, making it the tallest building in the city at the time. In the redesign, the kasota stone was changed to a lighter granite and a short pyramidal roof was added. The redesign was a result of discussions that had begun in 2003 with Comcast about moving into the tower.