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A sustainable and energy-efficient home or building is a structure that is designed and constructed to minimize its negative impact on the environment and conserve energy. This type of building prioritizes the use of renewable energy sources, efficient insulation and air sealing, energy-efficient heating and cooling systems, and high-performance windows to reduce energy consumption and reduce the building's carbon footprint. Additionally, it often includes sustainable building materials, water-saving fixtures, and landscape practices to conserve resources and promote a healthy environment for its occupants.