BS ISO 21931-1:2010 PDF

1   Scope This part of ISO 21931 provides a general framework for improving the quality and comparability of methods for assessing the environmental performance of buildings and their related external works. It identifies and describes issues to be taken into account in the development and use of methods of assessment of the environmental performance for new or existing buildings related to their design, construction, operation, maintenance and refurbishment, and in the deconstruction stages. The object of assessment in this part of ISO 21931 is the building and the external works within its site (curtilage). This part of is intended to be used in conjunction with, and following the principles set out in the “ family of International Standards”, which includes , , and , as well as and . Where deviation occurs, this part of takes precedence. This part of deals only with methods of assessment of environmental performance and excludes methods of assessment of social and economic performance, which are also part of sustainability and sustainable development.