The aim of this research is to describe the idea of transparency in architecture and the ability to combine it with practicality, adopting the concept of a double skin façade (DSF). This idea is not new and there has been an effort by many architects to create functional and sustainable buildings.

Due to its complication in use and function, an analysis follows of the basic principles on which DSF is based, presented in different sections. Many different factors influence the performance of this systems.

However the typology of DSF plays a vital role because on the one hand, each model affects the final design and on the other hand it is important to mention their features in comparative manner.

Furthermore, the advantages and disadvantages of DSF are listed.

The research continues with an analysis and proposal of custom made system. With this particular model it is possible during winter months to reduce the needs of heating and during summer months decrease signifantly the possibility of overheating.

Moreover the implementation of similar systems, in various parts of Europe, are presented. The study ends with the conclusions which arise throughout research.