This dissertation focuses on collecting, analysing and illustrating sources of the design for Queen’s Cross Church, and comparing them to Mackintosh’s other projects. Its discussion of the building includes minute-book records from meetings, detailing the decisions made during the planning process. It also describes the paintwork, ironwork, light fittings and furniture fittings of its restoration. Maps, black and white photographs of the interior and exterior of Queen’s Church and other churches of the period accompany this study.