Two months after the city of Chicago gave Pittsfield Hotel Holdings LLC a construction permit for development of a hotel on floors two to nine of the Pittsfield Building at 55 E. Washington St. — after the company, called Pittsfield, had already demolished floors seven to nine of the 40-story office building — Ald. Brendan Reilly introduced an ordinance that, when enacted a few weeks later, downzoned the premises …