The interior design of the filial church in Przyłęki, dedicated to the Ascension of the Lord, initiates reflection on contemporary relations of painting and architecture. The project assumes the valorisation of the church’s sacral space by creating a comprehensive interior design with the use of wall painting. It is heading towards strengthening liturgical (utilitarian) functions and linking it with the ideological and symbolic sphere of the object. The aim is to study the potential of traditional methods and techniques of wall painting in the context of generative digital design and modern technologies in the architecture design process. After the separation of architecture and art in the twentieth century, there is a need to deepen the awareness of the eternal correlation of painting and architecture, the relation of space in a painted image with architectural space, where the common matter and the sphere of influence is the wall. The method of emergence in the design of architecture and spatial objects was used in the work. The project used traditional art techniques in combi-nation with digital visualization.