The course for heating, ventilation, air conditioning, plumbing and electrical engineering activities is plotted during the preliminary study phase of a project. This requires both technical and spatial coordination of the tradesmen involved. Know-how, creativity and a systematic assessment of the available options help achieve significant savings with regard to investment and operating costs.

During the development of the integral building technology concept, a comparison is made between the various options: the supply of heat, power and water, the building's service centres, and energy and media distribution systems with regard to the criteria of operating costs, investment and safety.