Certified standards such as LEED, BREEAM or DGNB make the sustainability performance of buildings transparent. Find out what they stand for in this overview.

A certification company evaluates the building on the basis of a detailed catalogue of criteria. The composition and weighting of the criteria differ from label to label. Most of them work with a point system.

• The assessment or certification always refers to the building, not to individual products.
• In addition to environmental issues such as a building's electricity and heat requirements, emissions or resource use, life cycle costs, social aspects (e.g. accessibility), building management, mobility (public transport connections) and the surroundings (green spaces) are also relevant for certification.