An area of the London Borough of Barnet, the southernmost ward of the borough, although of historic origin, is a late-19th-century suburban development.
The earliest known use of the place name 'Child's Hill' is in 1593.
With an altitude over 259 feet above sea level (at the Castle Public House), Childs Hill is visible from afar, and from 1789 to 1847 was the site of an optical telegraph station. In 1808 this became one of a line of telegraph stations stretching from the Admiralty to Great Yarmouth, erected as part of Britain's national defences. Only the name, Telegraph Hill, remains; it has been covered with housing (this part of Childs Hill is now inside the boundary of the London Borough of Camden).
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