This document compares and contrasts the Leaf House in Brazil and the Nautilus House in Mexico. The Leaf House is constructed of wood and natural materials, while the Nautilus House uses ferrocement. The Leaf House's structure neutralizes the local climate, whereas the Nautilus House is earthquake-proof. Both houses include common spaces, but the Leaf House has additional areas like a pool and dock. Overall, the document expresses a preference for the Leaf House due to its eco-friendly materials, ventilation, and leisure spaces.