Hampstead Garden Suburb is an elevated suburb of London, north of Hampstead, west of Highgate and east of Golders Green. It is known for its intellectual, liberal, artistic, musical and literary associations. It is an example of early twentieth-century domestic architecture and town planning in the London Borough of Barnet, northwest London.

Letchworth Garden City, commonly known as Letchworth, is a town in the North Hertfordshire district of Hertfordshire, England. It is noted for being the first garden city. The population at the time of the 2021 census was 33,990.