Heritage Open Day: Join us at St John's Arts and Recreation Centre, to look back at the history and architecture of the Church. The ARC is now a Community Centre for residents in Harlow and surrounding areas. An extension to the building offers modern facilities. Discover the history and architecture of the Church by joining us at St John's Arts and Recreation Centre. We are working alongside Harlow Civic Society to be a part of a Harlow-wide festival for Heritage Open Days.