The plan of the cult building consists of two large zones: the presbyterium where the sacred rituals take place, and the hall for the parish. Initially, the cult building had a simple layout: a single apse for the altar was created. In early basilicas of Latin and Greek or Byzantine cross-design, aisles never lasted and did not create sidewalks around the choir. In the course of development, the layout of the cult building and the presbyterium changed: secondary prayer places, or chapels, began to be set up. The cult of relics flourished and chapels were arranged around the holy site in the church. In the Catholic temple, the entrance into the apse was made by a wide circular passage around the choir to which polygonal chapels adjoined. Jerusalem is the cult centre of the World. During the Second Crusade (1147–1149), Knights rebuilt the Church of the Resurrection – the most important holy site for Christians. During the course of centuries, the complex around the rotunda has been supplemented with secondary worship places. Chapels influenced the architectonically spatial structure of citizens’ Catholic parish churches, which were important for the urban planning of Hanseatic League cities. After the rebuilding of Riga St. Peter’s Church, secondary worship places were created, and the planning for one of the main citizens’ Catholic parish churches in Livonia was made. The goal of the research: analyse the common and different features of the planning of secondary worship sites at citizens’ Catholic parish churches in Hanseatic League cities during the 13th – 15th century. Research novelty: evolution of secondary worship places of citizens’ Catholic parish churches at Hanseatic League cities and Riga St. Peter’s Church has been studied in the context of Resurrection Church of Jerusalem as the world’s sacral centre. The main methods: this study is based on analysis of projects and cartographic materials of urban planning, published literature and inspection of buildings in nature.