The document describes an Energy Efficient Project that develops stylish and sustainable suburban houses with high levels of comfort, efficiency, security, and environmental sustainability. The project focuses on designing houses that use natural materials and colors, efficient construction methods, insulation, HVAC systems, home automation, passive solar energy, water management, and optional renewable energy to reduce energy consumption and costs while improving quality of life. The document provides details on several prototype house designs ranging from 115-220 square meters.