Hampstead (/ˈhæmpstɪd, -stɛd/) is an area in London, England, which lies four miles (six kilometres) northwest of Charing Cross, and extends from the A5 road (Roman Watling Street) to Hampstead Heath, a large, hilly expanse of parkland. The area forms the northwest part of the London Borough of Camden, a borough in Inner London which for the purposes of the London Plan is designated as part of Central London.