Chennai has one of the lowest per capita green space in the country. As of 2012, It has only about 0.46 square metres per city dweller. According to the development rules, when plots measuring more than 10,000 square metres are developed, 10% of the area must be reserved as open space and gifted to the local bodies, and in plots measuring between 3,000 and 10,000 square metres, if gifting of 10% of the area as open space is not possible, cash equivalent can be paid. The money thus collected is utilized to develop the landscaping in the city.