The Philadelphia Inquirer reports that the Comcast Technology Center is running $67 million over budget. The 60-story Technology Center (Foster + Partners), currently under construction next to the 58-story Comcast Center (Robert A. M. Stern Architects), is a very expensive building: $1.5 billion versus $540 million for the latter. The Comcast Center was completed ten years ago, so that makes a difference, and the Tech Center will include a 12-story Four Seasons hotel. But the amount of office space is virtually identical, 1.3 million square feet, compared to 1.25 million square feet in the older building, although the Tech Center is designed for greater planning flexibility. It would appear that high-tech architecture—and longer spans—simply cost more.

Photo: Comcast Tech Center (left) and Comcast Center (right).