This document discusses green buildings and real estate projects in Bulgaria. It defines green buildings as structures that are environmentally responsible and efficient over their lifecycle. Two Bulgarian projects, Willbrook Diamond Residence and Malkoto-selo, are highlighted for using sustainable materials and having a balanced ratio of buildings to green space. The document notes that green buildings see only a 2% increase in price but 70% lower costs during use. It concludes that green building promotes environmental responsibility and is an important trend in Bulgaria.