Space is an ambiguous and sometimes controversial term. Spatial planning is based on a delicate and changeable social balance, which is reflected in the legal basis (with German law code as example) and everyday implementation. In this essential, approaches from phenomenology are used to classify the various concepts of space. The author Dr. Mario H. Kraus, mediator and scientific writer since 2002 (specializing in real estate/urban development), dissertation with urban researcher Prof. Dr. Hartmut Häußermann (Humboldt University of Berlin 2009), is a member of the supervisory board of one of Berlin's largest housing cooperatives. The translation was done with the help of artificial intelligence. A subsequent human revision was done primarily in terms of content.