This document discusses eco-friendly construction techniques. It begins with an introduction defining eco-friendly construction as building in a way that is beneficial and non-harmful to the environment and uses resources efficiently. It then covers the need for eco-friendly construction due to growth in construction negatively impacting resources and the environment. The objectives are outlined as conserving resources and minimizing environmental impact. Techniques discussed include green roofs, rainwater harvesting, solar equipment, and use of materials like aero tiles, aero bricks, and wood fibers. Benefits are reducing costs, waste and environmental impact while enhancing health. Case studies of eco-lodges in Spain and a children's center are presented. The conclusion restates that eco-