The MacDougalls of Dunollie and Campbells of Dunstaffnage began the project to build an episcopal church in Oban in 1846.

The committee for the erection of the church appointed Charles Wilson as the architect, but following his death, the work was entrusted to his successor, David Thomson of the architectural practice Heath Wilson & David Thomson, Glasgow.

[1] It was described as being of small dimensions, consisting only of a nave and chancel, the total length being 61 feet (19 m) inside.

The rose window in the western gable was filled with painted glass, the gift of David Hutcheson.

The contractors for the building were John McCorquodale for masonry, Andrew Fairgrieve for plumbing, Hugh Brown for slating, George McAlpine for plastering, Charles McLaren for glazing, R. Reguson & Sons for painting, and G. Smith & Co for ironwork.