Info from Wikipedia
Double Door, a concert hall and nightclub, was located in the Wicker Park neighborhood of Chicago, Illinois, United States. The venue was first opened on June 12, 1994, and was co-owned by Andrew Barrett, Sean Mulroney and Joe Shanahan. On June 12, 1994, under its current ownership, the Double Door hosted its first show, Lloyd Cole; the same week, the Smashing Pumpkins played under the name the Starchildren. The venue at 1572 N. Milwaukee Avenue had a capacity of 473 people. It was two levels with a stage, sound system, dance floor and bar on the main floor; the second was a mezzanine level, the most intimate area of the club with its lounge type setting. A second bar and dance floor, Door No. 3, was located downstairs in the basement.
Closed at the North Milwaukee Avenue location around 2016