The parish church of St Martin in Alfreton, Derbyshire dates to the 13th century with additions and changes in the following two centuries and also the 19th century when the chancel was expanded. The church has a five bay nave with a clerestory on the southern side of the church. The church has north and south aisles and a vestry. The tower is 15th century and has three stages. The church was restored in the mid-19th century. A hall was added to the church in 1930.
The church is built from ashlar stone with a lead, slate and tile roof.
