Sustainable quality starts with the first design sketches: building orientation, building surface area to building volume, as well as an efficient organisational layout and the selection of durable and natural materials.

With the use of renewable energies (wind, water, sun and soil) and the use of balanced high-efficiency building equipment, operating costs are minimised, while comfort and operational safety is maximised.

Sustainable design is a balance of ecological, economic, socialcultural and functional qualities in order to achieve an buildings's optimum of a "life cycle value".