Dwellings in buildings being the property of legal entities having in their names "public building society" or the Polish abbreviation "TBS" irrespective of participation in costs of constructing the building by another entity (a gmina, a housing cooperative, a company) in return for receiving the dwellings (on rental terms) for third parties indicated by such an entity.

Public building societies were erected in accordance the Act of 26 October 1995 on Certain Forms of Supporting Housing Construction.

• Dwelling