This report delves into the critical issue of sustainability in the construction sector, emphasizing the integration of sustainable systems in residential projects to mitigate climate change. It explores three main sustainable building systems: energy, water, and waste systems, with a specific focus on energy systems. The report details various energy-efficient strategies, including passive design systems that leverage natural resources, energy-efficient equipment, renewable energy sources like solar and wind power, and automation systems for optimized energy consumption. It discusses the environmental, economic, and social benefits of these systems, such as reduced emissions, lower energy bills, and improved occupant comfort. The report also analyzes the costs associated with incorporating these sustainable systems, highlighting that while upfront costs may be higher, long-term savings and environmental benefits often outweigh the initial investment. The conclusion underscores the importance of sustainable building practices for environmental conservation, economic growth, and an improved quality of life.