This document specifies the calculation method, based on Life Cycle Assessment (LCA) and other quantified environmental information, to assess the environmental performance of a building and its site, and gives the means for the reporting and communication of the outcome of the assessment. The standard is applicable to new and existing buildings and refurbishment projects. The document gives: - the description of the object of assessment, - the system boundary that applies at the building level, - the procedure to be used for the inventory analysis, - the list of indicators and procedures for the calculation of these indicators, - demand for information concerning environmental impacts and aspects at the local environment level (including emissions to indoor air), - demand for information concerning building generated energy reporting and design for circularity as technical characteristics that support environmental performance, - the requirements for the data necessary for th
