[5] St John's is constructed in hammer-dressed sandstone with ashlar dressings and Welsh slate roofs.

Its plan consists of a five-bay nave, a short chancel with a vestry at the east, and a west tower.

At the corners of the nave and the chancel are octagonal buttresses rising to pointed finials.

[1] Inside the church there are galleries on three sides that are supported by thin iron columns.

Two new bells were added and the new peal rang for the first time at St Thomas's on 8 January 2017 at a dedication service conducted by the Bishop of Chester.