The aim of the work is to design the completion of the block in the historic center of Ostrava in a place called Kostelní náměstí. The work deals with the topic of appropriate integration of contemporary architecture into the historic city center with the choice of the right functions to revitalize this locality. The problem of the city center is quantity of gaps in the historical city core, a few attractive features for people, shifting the focus of interest to the shopping center Nova Karolina and problematic relations between private owners and the city council.