The parish of Themelthorpe lies in the northeastern portion of central Norfolk about 3 miles west of the small market town of Reepham. Themelthorpe is a tiny place, little more than a hamlet which sits a couple of miles northeast of the A1067 road (Norwich to Fakenham), most properties line a lane leading southward from the church. Themelthorpe was a tiny parish of just 652 acres, one of the smallest rural parishes in a county of numerous small parishes. Unlike most Norfolk parishes that tiny acreage was occupied by a mixed farming regime with pastures in almost equal measure to arable. Considering its small size Themelthorpe had an unusual status as a railway junction, the Midland & Great Northern lines from Norwich to Melton Constable here crossing the  line connecting Aylsham with Fakenham; both lines are now foot & cycle paths offering exercise rather than transport.

St Andrew's church has a tucked away setting, hiding from view behind fronting properties and accessed by a lengthy footpath from that main north to south lane. The plain and simple church, it has nave & chancel as one with no chancel arch and an un-buttressed western tower, dates largely from the 13th century and shows the Early English Gothic styling of that period. The church's build probably extended into the early 14th century as mixed in with the lancet style windows there is tracery of the later Decorated style too. For once Pevsner does not mention a Victorian restoration so if one occurred it was light and sensitive. The lane past the church is rather narrow and parking is best sought a little to the south of the small and unremarkable gate announcing the path to the church with a small wooden sign affixed to the metal gates. A short walk along a shady footpath leads to the churchyard which has a few trees but is otherwise with few obstacles for the photographer.