After the war and the restoration of the area to Poland, the club re-assumed its Polish name and continued to be a power in the country's football, earning third-place results in 1946 and 1947. In 1948 "AKS" joined the newly re-established Polish first division as "Budowlani Chorzów" and played there for seven years until being relegated after the 1954 season. The club played second division football until 1958 then faded into obscurity, with some supporters claiming that team's German origins and history of success in the Nazi-sponsored Gauliga put it into disfavour with Communist Poland's sporting authorities, contributing to the team's decline.