This inhabited islet connects by a footbridge to Church Street, Staines, adjoining The Lammas recreation ground and mini-golf course and 100m below the oldest of the town's three Anglican churches, a Grade II* medieval structure.
[2] The narrow channel between the island and north bank (backwater) forms a small oxbow away from the course of the river.
[2] Roman itineraries note that a point around Staines was the location of Ad Pontes (Latin for "Bridgeside" or "[City] by the Bridges"), a waypoint on the Devil's Highway between Londinium (London) and Calleva (Silchester).
With evidence of architectural discoveries in the 19th century leading towards the island from the present town centre, a local historian of the Victorian period surmised that two Roman bridges crossed each of the town's rivers: the Colne and then the Thames at Church Island.
A county history of Susan Reynolds (1962) says Egham Hythe had a larger island than Church Eyot directly across Staines Bridge in 1754, which remained until the early 20th century.