The engineering company Energie + Bauplan GmbH was founded at the 1st December in 1992. It was established out of the architecture and engineering office LEIPZIGBAU to adduce exacting, interdisciplinary consulting and planning accomplishments in the entire array of scientific-technical services. The Energie + Bauplan GmbH bundles the experiences and efficiency of well-known offices in Saxony, with more than 100 employees in all. Therewith it is representing the whole variety of modern engineering. With this company, we developed a very efficient and flexible organisation, especially for planning accomplishments. The purchaser has a professional compact bespoken project team on his disposal, which works both interdisciplinary to adduce complex accomplishments as general planner and also in single disciplines. The concept is successful. This is proved by the completed as well as the ongoing projects. Own scientific researches, practical experiences and a long term documentation of completed projects guarantee, that the project team of the Energie + Bauplan GmbH develops a building, that complies the site, the user, the kind-of-use and the life perfectly.