The Barcelona Metropolitan Area (AMB) is a local public body created by law of the Parliament of Catalonia in 2010, composed of representatives of 36 municipalities around Barcelona. With an area of 636 km2 and 3.35 million inhabitants, the metropolis of Barcelona is a territorial, social and economic entity shaped during the last century as a result of the development and growth of the increasingly connected urban systems of the Barcelona area. Currently, it is the largest metropolitan conurbation in the western Mediterranean, which generates half of the Catalan GDP.
The AMB performs its main powers, related to territorial management, town planning, housing, mobility, environmental issues and social and economic development, to support municipalities in the provision of services to citizens and attain an inclusive and equitable metropolis.