With growing consciousness for the relation between facades and energyconsumption and the rising sensibility for sustainability, in the beginning of the 21st century double facades, hybrid facades and decentralized mechanical services have been developed. In a market with rising demands on quality and ecologic/economic sustainability, such as Europe, these principles will increasingly have to be applied for the refurbishment of the enormous number of existing buildings. The author's research led to different efficient strategies that deal with the complex influencing factors. It aims to develop systemized solutions for varied circumstances to be found in an international market, for which a service integrated façade is a promising approach. In one example the application of such a system is presented. An additional façade layer with integrated HVAC is being applied to an office-high rise built in 1970. Simulations have shown that an energy saving of 75% is possible.