39-40 Market Square in Wrocław, Heritage house at Market Square, Wrocław, Poland

The Louis Lewy department store at 39-40 Market Square is a five-storey building on a 20 by 25 metre rectangular plan, erected in 1904 to designs by Schlesinger & Benedickt. Its six-axis facade exposes a timber-frame structure: large display windows on two floors, tall arched windows on the fourth, and two neo-Mannerist gables with a figure of Mercury between them.

Two medieval houses, Nos. 39 and 40, stood here until 1904, when they were demolished for Louis Lewy Jr.'s department store, designed by Schlesinger & Benedickt. The store was renamed Geschäftshaus Hünter in 1938 and survived the 1945 fighting. From 1945 it housed the Elegancja fashion house and clothing works; in 1997–2002 it held a British Home Stores branch.

The eastern frontage of the Market Square is known as the Green Reed Side, and locally as "Under the Hatmakers' Arcades". The building's twin neo-Mannerist gables recall the earlier houses on plots 39 and 40, and a figure of Mercury stands between them. Since 2002 the ground floor has housed a Sphinx restaurant, with offices and services above.

The building is centrally located and easily accessible on foot from shops, restaurants, and major transit points around the square. Visitors should expect that the area becomes quite crowded during peak tourist seasons and is best explored during quieter times.

The plot numbers 39 and 40 resulted from historical property divisions and consolidations that were common on the square. This dual numbering preserves a record of how ownership patterns and land boundaries shifted over time in this central location.