Cae Adda Methodist Sunday School was built in 1848 and rebuilt in 1910. The 1910 building is stone-built in the Vernacular style with a gable-entry plan, centre gabled porch and slate roof. There is a stone meeting room or vestry attached at the rear. By 1998 Cae Adda was in use as a laboratory.

RCAHMW, February 2010