In continuation of the project from 2001 the development of the German building equipment sector was analyzed. For this purpose the important market data, for example the number of enterprises, turnover, employees, investments, has been collected. Moreover the training situation and for parts of the sector the development of profits and concentration are presented. Beyond an overview for the present development of the sector was given. Finally the turnover of the German building equipment sector was compared with the similar data of france, United Kingdom, Italy and the Netherlands. The official statistics of Germany do not contain a separate category for the building equipment sector. In order to include this sector, it was necessary to combine parts of the industry sector, the wholesale trade and the installation skilled trades to build a “new“ trade category. Besides selected data from the official statistics of several industries, information of the relevant associations was used. The criteria for the selection of several industries, or parts of them from the official statistics, are explained in the report. The data were combined to greater parts of the building equipment sector, for example the heating industry, the sanitation industry or the wholesale area. For these parts, characteristic figures such as turnover per employee or investment per enterprise were calculated. For the whole building equipment sector, turnover must be consolidated in a special manner. For the calculation of this turnover, the interlacing between the building equipment economy and other sectors of the economy must be considered. Thereby, the four levels – industry, wholesale, skill trades and end-users – were distinguished. Additionally the supply/demand from abroad was considered. The consolidated turnover consists of sales to end-users and foreign sales. In 2001 the building equipment sector comprised 50,000 enterprises with 507,000 employees. The consolidated turnover amounted to around € 38.46 billion; the turnover in Germany amounted to nearly € 33billion. At present the economic prospects of the building equipment sector are depressed. The main reason is the decreasing construction investments expected in the coming years. Positive impacts arise from the growing need for replacement of heating and sanitation devices, the new Energy Saving Ordinance which took effect in February 2002 and the growing use of renewable energy.