Parts of a building which all the residents share, including staircases, lifts, the entrance hall, landings, yards, passageways, rooftop terraces, cellars, etc. All residents must ensure that such areas are well maintained and properly used. You must not leave objects in or make personal use of them, other than in places set aside to serve as storage facilities.
Rules that govern an association's internal affairs. It is not compulsory for such rules to exist, as owners' associations are governed by the Propietat Horitzontal / Condominium Law. Such statutes may never contradict the Condominium Law, although they may complete or expand upon aspects of it to adapt its regulations to the characteristics of a building.