The main feature of the proposal is minimization of the A/V ratio of the building. Minimal external surface means minimal heat losses. Egg shape is used as inspiration to this project. As known, the egg is one of the most energy-efficient forms of nature. To make A/V ratio minimal, we blocked houses together, linked walls, chose effective dimensions, delete corners, using egg shape in section, and adopted form to site. The result is twice reduced A/V ratio (0.39).