The building will be located on what is now a parking lot just west of the historic Ferndale Fence & Awning building and behind Thames Street Wharf, where Morgan Stanley has its offices. The 27-acre Harbor Point area, once a chromium plant, will occupy a spot along the waterfront between Fells Point and Harbor East with 900 homes, 6 million square feet of offices and about 9.5 acres of open parks.