Going to the full extend of getting the best space is going for a cubic house. All the walls have to be straight and outlined on each other. Glass is nice to get the right amount of light into your house.
The cozy villa has a more Mediterranean feeling towards it. Often use the colors, green, red and brown. Showcasing more elements gives it a very cozy feeling. Other elements are wood. This is often beautiful but require a
White is the most common used color for large houses. The big villas here in LA are mostly white as well. Sometimes even the rooftops are white. This is done to keep the heat limited to a small amount.