Domański Tenenement House in Warsaw, Neo-Renaissance tenement house in Śródmieście, Warsaw, Poland.

Kamienica Domańskich, also known as the Jan Sobierajski Tenement House, stands at Marszałkowska 41 at the corner of plac Zbawiciela. Built in 1893–1894, it has two front wings—eight axes facing the square and seven along Marszałkowska—plus a single north annex. A carriage gateway opens on the Marszałkowska axis; the building retains wooden ceilings and a low gabled roof.

Jan Sobierajski built the house in 1893–1894 and served as its own site engineer; in 1895 it passed to Felicja and Włodzimierz Domański, whose name it carries. The eclectic stucco decoration inspired by Baroque and Renaissance models was chiselled off the upper floors in 1938–1939, leaving only the ground-floor ornament, the gate and the interiors. In September 2008 the building was entered in the register of monuments.

The building is named after Felicja and Włodzimierz Domański, who bought it in 1895, a year after Jan Sobierajski, its builder and chief technician, completed it. From 1924 the ground floor housed the Polish branch of the Kempisty Company, repairing and selling sewing machines; it stayed at this address until February 2013.

The building at Marszałkowska 41, on the corner of plac Zbawiciela, has been closed to use since 2012, when the building inspectorate banned its occupation; in 2023 the conservation office ordered the owner to carry out conservation and construction work. The former ground-floor sewing-machine workshop of the Kempisty company moved out in February 2013 to Wspólna 54a. View the corner facade from the street and the plac Zbawiciela side.

From 1924 the ground floor housed the Polish branch of the Kempisty Company, repairing and selling sewing machines; Jan Raczyński ran it from 1928 and restarted it in June 1945. Under occupation the workshop made fittings for the Wehrmacht while its owner did small gunsmithing jobs for the Home Army. The firm stayed at this address until the end of February 2013.