Built in honour of John Fielden, a local mill owner and a social reformer, the church was completed in 1869.

The church is recorded in the National Heritage List for England as a designated Grade I listed building,[2] The Unitarian movement originated in Todmorden in the early 19th century, and one of their prominent members was John Fielden, a local mill owner and a social reformer, who later became a Member of Parliament.

"Money was no object to these brothers" and the resulting building, costing over £35,000 (equivalent to £4,350,000 in 2023),[5] was large and splendid, and was built using the best quality materials.

Its plan consists of a seven-bay nave with aisles, transepts, a single-bay chancel, a porch, and a large tower with a spire.

Internally the arcades consist of pointed arches carried on Devonshire marble columns.

In the chancel window is stained glass by Jean-Baptiste Capronnier of Belgium that depicts scenes from the life of Christ.

These have included repair of the church roofs, stained glass, clock and peal of bells, restoration of the lodge and the interior of the tower, and the installation of a new heating system, toilets and kitchen.

The church is set on a steep slope, surrounded by ornamental gardens, and has a wooded, landscaped burial ground.

Its plan is T-shaped, the projecting wing having two steep gables, a Gothic-style doorway, and a canted bay window.

[6] The original Unitarian chapel and Sunday school in Wellfield Terrace is also listed Grade II.