This paper presents an innovative approach to using computational methods in designing modular housing estates with the Wave Function Collapse (WFC) algorithm. Currently, as a result of fast changing humanitarian situations in various parts of the world, like the one caused by the war in Ukraine or climate changes, many people have to leave their homes. It results in complex problem of providing large groups of people with conditions that will allow them to function with dignity for a long time. Therefore the adaptation of the WFC algorithm to design modular settlements is proposed. The applied heuristics allow the solutions to adapt to specific project requirements, generating various modular settlement designs that consider functionality and social aspects. The proposed approach is illustrated by examples of generated arrangements of housing modules for family-type floor plans.