A sustainable home minimizes environmental impact using energy-efficient systems and high-performance materials like passive solar design, Low-E windows, ENERGY STAR appliances, drip irrigation, eco-paints, cool roofs, solar panels, smart power strips, and improved insulation. Types include shipping container, zero-carbon, tiny, prefabricated, and Earthship homes. Everyday habits like composting, cold-water laundry, natural cleaning, indoor plants, and line-drying also help reduce energy use.