In 1945, shortly after the war ended, Stażewski moved to Warsaw and was hired as the head of the art studio at the Military Geographical Institute. He took an apartment on Piękna Street with artists Jan Rogoyski and Maria Ewa Łunkiewicz-Rogoyska, a space that would become a nexus of Warsaw avant-garde artists and intellectuals in the following years. During the early post-war era, he returned to painting and experimented with various modernist styles, including biomorphic abstraction and semi-figurative compositions inspired by Surrealism (evident, for instance, in the 1947 painting titled Escape).
