Rome possesses a unique territorial heritage that is still remarkably free from urban development.
Further to the adoption of the "Piano delle Certezze" ("Plan of Certainties") in May 1997,
64% of the common land (equalling 80,000 on a total of 129,000 hectares) are now subject to very strict regulations for the protection of the environment.
, founded in 1997, is a Regional Authority for the management of a system of 14 (forteen) Protected Natural Areas within the municipal district of Rome. Most of them are rural areas belonging to the "Agro Romano", a typical cultural landscape of the Region. The RomaNatura system is strictly connected to other inside and outside green areas, forming an ecological net whit the 69 protected areas of Latium Region.
has been put in charge of 14,000 hectares, which is more or less the area covered by the entire city of Bologna. The Royal Parks Constabulary of London manages little more than 2,500 hectares of land.