The chapel is located in the eastern part of the tree-covered square of Bl. B. Kostkowski, separated within the historic bulwark along the streets: Jagiełły, Zamkowa, Jana Pawła II and Dominikańska. A Gothic chapel, one of the central chapels of Central Pomerania, erected on an irregular octagonal plan. A block of stocky proportions, covered with a domed roof topped with a lantern. The foundation of the chapel is made of stone blocks, brick walls with ceramic fittings, partly plastered, wooden ceiling, shingled roof. The façades have a frame composition, plastered wall fields are framed on the sides with brick lesenes (at cut corners), from the bottom with a low stone plinth, and from the top with a strip of frieze separated by a cornice. Round windows, placed in the upper half of the wall, surrounded by a half cylinder. from west a four-step, richly profiled, ogival portal. Inside, there are eight deep arcaded niches with barrel vaults, in the face of massive pillars between the niches, angled pilaster strips with bundles of shafts ended with a stone corbel (proof of the possibility of the existence of a vault) are distinguished. There is no movable equipment inside.