ISO/TS 21929-1:2006 provides a framework, makes recommendations, and gives guidelines for the development and selection of appropriate sustainability indicators for buildings. The aim of this part of ISO/TS 21929-1:2006 is to define the process that shall be followed when addressing the economic, environmental and social impacts of a building using a common framework and a set of indicators. This part of ISO/TS 21929-1:2006: adapts general sustainability principles for buildings; includes a framework for the assessment of economic, environmental and social impacts of buildings; shows indicators as examples; shows how to use sustainability indicators with regard to buildings and shows the process of using sustainability indicators; supports the process of choosing indicators; supports the development of assessment tools; defines the conformity with this specification.