The use and integration of smart technologies inside buildings in planned renovations is a point addressed in the Directive (EU) 2018/844 that also introduces the Smart Readiness Indicator (SRI), a new indicator to assess the readiness of buildings to adapt itself to users and grid needs. With this new indicator, the Directive aims to communicate more directly to more people (users, owners, etc.) the added value of having ICT technologies in a building. If users understand the value of this transformation, they are more motivated to invest time and money in it. The indicator is then defined as a tool that provides information about the readiness of buildings to interact with external energy networks and occupants of the buildings to ensure more efficient operation and better energy performance through ICT technologies.