INTERNATIONALISOSTANDARD21931-1Second edition2022-06Sustainability in buildings and civilengineering works-Frameworkfor methods of assessment of theenvironmental,social and economicperformance of constructionworks as a basis for sustainabilityassessment-Part 1:BuildingsDeveloppement durable dans les batiments et les ouvrages degenie civil-Cadre methodologique de l'evaluation au sens dudeveloppement durable des performances environnementales,socialeset economiques des ouvrages de construction-Partie 1:BatimentsReference number1S021931-1:2022(E)©IS02022IS021931-1:2022(E)COPYRIGHT PROTECTED DOCUMENTAll rights reserved.Unless otherwise specified,or required in the context of its implementation,no part of this publication maybe reproduced or utilized otherwise in any form or by any means,electronic or mechanical,including photocopying,or posting onthe internet or an intranet,without prior written permission.Permission can be requested from either ISO at the address belowor ISO's member body in the country of the requester.ISO copyright officeCP 401 Ch.de Blandonnet 8CH-1214 Vernier,GenevaPhone:+41227490111Email:copyright@@iso.orgWebsite:www.iso.orgPublished in SwitzerlandISO 2022-All rights reserved