Chicago’s red-hot Fulton Market District could add even more office space to its increasingly crowded development pipeline. Next week, developer Shapack Partners will publicly present a plan for a 17-story commercial building at 167 N. Green. The proposal also encompasses Shapack’s property at 801 W. Lake. Here, the group is currently making space in a 14-story office tower known as 176 N. Halsted.

The scope of the development will now extend further south—all the way to the alleyway behind Au Cheval—according to notes from a September meeting between Jeff Shapack and Neighbors of the West Loop. While the previous concept for the site involved building over a vacated public alley, the updated plan instead calls for a pedestrian pathway or “mews” to run between Halsted and Green. Partly covered by the new building, the public passageway would be lined with shops and restaurants.

Known as SPECTRE, the new Gensler-designed building could completely replace the previous design slated for 176 N. Halsted or simply be an addition. According to the meeting flyer, the project will include 129 parking spaces—up from about 50. The increased size of the development will also double the project’s required Neighborhood Opportunity Fund payment from around $2 million to $4 million.

Along with Sterling Bay, Shapack Partners has been one of the area’s most active developers. Notable West Loop projects include the glassy Parker Fulton Market apartment tower, Chicago’s Soho House hotel and private club, an upcoming seven-story office building at Halsted and Fulton Market, and the under-construction Hoxton Hotel at Lake and Green.

The community meeting to discuss the amended planned development proposal for 167 N. Green is scheduled for Wednesday, November 29th at 6:00 p.m. Hosted by Alderman Walter Burnett Jr. and the West Loop Community Organization, it will take place at Catalyst Ranch at 565 W. Randolph Street.