Demo has finally started at 55 Pearl Street, future home of the much-discussed five contemporary townhouses. The construction fence went up in the last few days, and today at lunchtime workers were ripping off the roof. A demo permit was issued on Aug. 23. When we last visited this project, four of the five townhouses were already in contract. Asking prices have ranged from $4,100,000 to $4,950,000.