Old Prentice Women’s Hospital—the cloverleaf-shaped Bertrand Goldberg building that Pritzker Prize winners petitioned to save—has been fully demolished.

In a photo sent to The Chicago Architecture Blog, Dr. Robert L Vogelzang of Northwestern University’s Feinberg School of Medicine documents the sight preservationists feared for years: an empty lot at 333 East Superior Street. Northwestern plans to build a 40-story tower for biomedical research there. The design by Perkins + Will features a wavy glass facade and connections through the Streeterville site. Its construction is expected to go in phases, although a firm schedule is not set. Construction could start next year and wrap up by 2018.

Ald. Brendan Reilly‘s office will hold a public meeting to discuss the “proposed final design” Tuesday, September 30 in the Hughes Auditorium at 303 E. Superior St. Prentice may be no more, but the ultimately unsuccessful preservation battle to save it remains one of the city’s most bitter in recent memory.