“Kupolas” is an apartment in the Old Town of Vilnius, exceptional for its location and architectural structure. It combines new construction with views of the Old Town outside the window. The unusual structure of the building emphasises the exceptional space, the resulting conical roof allows for the formation of a three-metre dome in the space, which becomes an interpretation of the Old Town architecture. In this unconventional space, the main task is to highlight the architecturally emergent forms, emphasising the uniqueness of the space.