St. Adalbert Church in Pilsen. (WTTW News)

The city’s Commission on Chicago Landmarks voted in favor of a preliminary landmark recommendation for St. Adalbert Church. This starts a lengthy eight-step approval process, which ends in a vote by City Council on the designation.

On Sunday, the final mass at St. Adalbert church in Pilsen is set to take place, but supporters of the church vow to appeal the closure.