As a result of the economic changes of the socialist period and the decree “one flat per family”, many standardizations were introduced in order to build new flats as efficiently as possible. Not only buildings but also entire estates were duplicated, following Corbusier's idea of architecture industrialization. The standardization of apartments and whole districts caused creation of neutral and unacceptable space. Today many cities in Post-Soviet states are struggling to change the image of irrelevant heritage, which accordingly to the technical research made by the Ministry of Infrastructure and Construction in Poland will last for at least another 100-120 years.