The brief called for us to design a naturally ventilated, passively cooled, low cost apartment. Locally available materials were used for construction. The structure followed north south load bearing walls within which the various functions were flexibly placed. These north south walls acted as axis for the entire structure. All openings, mostly floor to ceiling, were designed to face the north south direction and the east and west walls were shaded by trees. Non of the units required air-conditioning due to this reason. Lime cement finishing was used for the walls further cooling the interiors. All these elements brought about the reduction in the cost of the building. Usage of rainwater harvesting system, solar panels helped in reducing the energy usage too.