The integration of social value into real estate business models is essential for achieving truly sustainable urban development. This research examines how the European real estate industry can embed social considerations, such as equity, accessibility, and quality of life, into strategic decision-making to support a systemic transition toward a more sustainable and just built environment. Adopting a systems perspective, the study identifies key barriers to the adoption of social value, including limited awareness, lack of standardized metrics, and entrenched financial priorities. It also outlines enablers such as regulatory support, green financing, and stakeholder collaboration. The research culminates in a strategic roadmap designed to help developers integrate social sustainability into their core value propositions through structured assessment, implementation, and feedback processes. Ultimately, the report positions social value not as a peripheral concern, but as a strategic imperative for long-term success.