St Fillan's Episcopal Church, Main Street, Killin

St Fillan's Episcopal Church, located on Main Street in Killin, was built in 1876 and extended to the east in the early 20th century. This single-storey church features a seven-bay Latin Cross plan, with a lower vestibule at the west end that has a pitched roof and a central swept pyramidal louvered ventilator. The exterior is clad in corrugated iron with timber details, and there is a brick base course. The original pointed-arched openings have stop-chamfered reveals, and the church is adorned with timber bargeboards and spike finials.

On the south elevation, which serves as the entrance, there is an advanced gable that forms the short arm of the cross in the fifth bay from the left. This gable features a transverse boarded door with a window to the right and a spike finial above. A window is also present in the left return, with regularly spaced windows in the remaining bays.

The north elevation is a six-bay arrangement, with a bipartite window in the advanced gable (the short arm of the cross) in the second bay from the left, topped with a spike finial. There is a large window in the left bay, and the remaining bays have regularly spaced windows.

The west elevation includes a window in the gablehead vestibule, which is offset to the right of center, and a transverse timber boarded door in the left return, with a stylised flower finial above the main gable. The east elevation is blank.

The church features timber-framed windows with central hoppers in the original west block and a timber-framed window with top-hung upper lights on the east side. The roof is made of corrugated iron, and uPVC rainwater goods are installed.

Inside, the church is lined with boarded pine throughout, with diagonally boarded doors and an open timber ceiling. The crossing area features an open timber structure, and trefoil motifs decorate the rafter angles. The interior includes pine pews, a timber-panelled and painted altar created by George Watson from Edinburgh, a timber prayer rail supported by wrought-iron floreate designs, and a stone font.

Additionally, there are iron gates, square-plan gatepiers, and a low rubble boundary wall surrounding the church.