The first Penuel Chapel was built in 1786, enlarged in 1797, then rebuilt in 1851 and again in 1879. Stucco and detailing was applied to the facade of the chapel in 1910, to the designs of achitect J. H. Morgan of George Morgan & Sons, Carmarthen. The present building is dated 1910, Classical in style with a gable-entry plan.

RCAHMW, June 2009.