Mission Chapel north east of tower of former Church of Saint Kea

The Mission Chapel, built in 1858 and enlarged in 1863, is located northeast of the tower of the former Church of Saint Kea. It features slatestone rubble walls with granite quoins, jambstones, mullions, arches, and finials. The roof is made of asbestos slate and has a double span with cross finials over the gable ends, along with a projecting bell turret on the west nave gable. Originally designed as a nave and chancel, the chapel was expanded with a south aisle and south porch towards the west end in 1869.

The building exhibits restrained mid Gothic styles, characterized by geometrical traceried and lancet windows. All windows are fitted with leaded cusped lights and have hoodmoulds above. The west wall includes a three-light window at the aisle gable end on the right and a three-stage bellcote with one bell at the nave gable end. The north wall has a single-light window on the right and two two-light windows in the middle. The east gable of the chancel extends one bay beyond the aisle gable, with each section featuring a three-light window. The south wall has a gabled entrance porch on the left, which includes a tall moulded pointed outer and inner doorway with ashlar jambs. There is an additional entrance for the priest to the far right, featuring a pointed doorway with a hoodmould and carved stops. Between these entrances are two two-light windows with trefoil tracery, along with a further single-light window to the left of the porch and another on the south wall of the chancel.

Inside, the chapel has simple arch-braced roofs supported by granite corbels and a four-bay freestone arcade of pointed arches resting on octagonal piers with moulded caps. Some of the windows contain coloured glass, and there are later 19th-century pine pews. This simple Gothic style building complements the ruined tower of the old church to the southwest.