The metropolitan region of Chennai covers many suburbs that are part of Kanchipuram and Thiruvallur districts. The larger suburbs are governed by town municipalities, and the smaller ones are governed by town councils called panchayats. While the city covers an area of 174 km2 (67 mi2), the metropolitan area is spread over 1,189 km2 (458 mi2). The Chennai Metropolitan Development Authority (CMDA) has drafted a Second Master Plan that aims to develop satellite townships around the city. Contiguous satellite towns include Mahabalipuram to the south, Chengalpattu and Maraimalai Nagar to the southwest, and Kanchipuram, Sriperumpudur, Tiruvallur and Arakkonam to the west.