Sustainability reporting by real estate companies positively impacts their stock prices. The study analyzed data from Europe, USA, and Australia and found that companies that communicate their sustainability efforts see a boost in their value. This shows that being environmentally responsible and sharing that information with stakeholders is not just a nice gesture, but actually helps companies succeed financially. The Global Reporting Initiative provides a framework for companies to report their sustainability efforts in a standardized way, making it easier for investors to compare and evaluate them. In conclusion, sustainability is not just a trend, but a key factor in determining the success of real estate companies in today's market.