In the 12th and 13th centuries on the Baltic Sea coastal lands, the construction of sacred buildings expanded with the spread of the Catholic Faith, influencing the spatial organization of the urban environment. Bishoprics and centres of spiritual life were founded for the subjugation of lands, where fortified residences for bishops and councils were bult. Building complexes formed by two different fortified building units with the cathedral as the main architectural dominant contributed to the settlement, and cities for economic activity developed. Churches for citizenship Catholic parishes became architectural dominates that influenced the spatial organization of cities included in the Hanseatic League. Riga became the centre of the Riga Archbishopric (1255–1562) subjected to Pope and the Holy Roman Emperor. Research object: urban space of the Hanseatic League cities in the 13th and 14th centuries. Research problem: sacral buildings changed urban aesthetics and the image of cities. The layout and urban space of Hanseatic cities have not been studied enough to preserve their identity in the course of modern urban development. Research goal: analysis of the impact of churches for the citizenship parishes on the planning, visual image and architectural-spatial development of the Hanseatic League cities, as well as Riga. Novelty: analysis of common and local features of medieval urban space and the structural evolution of the Hanseatic cities during the 13th and 14th centuries. Research methods: analysis of archive documents, projects, cartographic materials, studies of published literature, an inspection of churches in nature, and photo fixation.