Mayhill Garden City started in 1914 as an experimental row of six houses that are still in occupation today as even numbers 2 to 12 Islwyn Road. The majority of homes were built by 1940. Maps from 1874, 1879, and 1921 confirm that prior to the Mayhill Garden City project, Townhill Farm occupied the upper end of Waun Wen Road and a well used by Baptists was located halfway down. At the end of what is now called Long Ridge (previously called Bryon Crescent) there was, and still is, a Jewish burial ground. Waun Wen Road was completed before 1938.