Over the recent decades, the concept of social sustainability (SS) has been increasingly recognized as a key component of sustainable development incorporated in sustainable communities’ agendas. However, SS measures and practices have been insufficiently applied and underrepresented with regard to residential buildings. The aim of this paper is to employ experts’ perspectives to identify interdisciplinary, multilevel strategies/drivers for the integration of SS measures and practices into governmental and operational activities in relation to residential buildings. The selected strategies emerged from a detailed literature review and a two-round Delphi survey collecting responses from an expert panel, which were carried out in order to determine the relevancy of the proposed strategies. Of the 38 preselected strategies, 32 were deemed significant. In addition to a number of relevant strategies, the panelists especially recommended disseminating new concepts of growth that would contribute to breaking the link between materialism and social progress and to the adoption of new ways of life characterized by a more harmonious and healthy coexistence of people and the environment. They also suggested a gradual introduction of SS principles into value systems and their implementation in all aspects of personal and social life as an essential precondition for achieving the goals of sustainable development on a large scale. These results lay the groundwork for the incorporation and development of SS strategies by policy makers, developers, and planners and provide a starting point that will allow other researchers to identify the most relevant strategies in different contexts, i.e., countries and regions with their specific characteristics, which will further create the conditions for the more efficient implementation of SS measures and practices and contribute to the fulfilment of Sustainable Development Goals (SDGs).