Heritage Open Day: A Grade II listed building, built in 1896. Designed by the Arts and Crafts architect W H Seth Smith. Using local building materials, it is a typical example of the Arts and Crafts style of architecture in Surrey. A chance to view the original reredos which hung above the altar in the sanctuary. Originally intended to be the Greshambury Institute, attached to the nearby Chilworth Paper Mills, worship has taken place here since 1896. St Thomas’ is now a centre of worship for the parish of Chilworth along with the parish church, St Martha-on-the-Hill. According to Nairn & Pevsner (1971) it is a “square plan with tower annexe to the west.