Summer Hill is a suburb of Sydney, in the state of New South Wales, Australia. Summer Hill is located 8 kilometres west of the Sydney central business district, in the local government area of the Inner West Council. Summer Hill is a primarily residential suburb of Sydney's Inner West, adjoining two of Sydney's major arterial roads, Parramatta Road and Liverpool Road. The first land grant was made in 1794 to former convict and jailor Henry Kable, and the suburb began growing following the opening of the railway station on the Main Suburban railway line in 1879.