A new version of BREEAM In-Use International was released in 2020. This version makes it possible for the first time to certify residential buildings. The Dutch Green Building Council (DGBC) currently works on the translation of this new version to the Dutch context. Vesteda aims to explore the BIU-method to gain insight into the sustainability performance and opportunities for improvement of their residential portfolio. In order to define the applicability and benefits of BIU for housing in the Netherlands, Longevity Partners analyzes the new assessment methodology and supports Vesteda in the collection of required evidence for certification. This analysis reveals what type of evidence is requested, what evidence is available and allows a first selection of buildings to be certified.