In the cellar were the town's public baths, and they were in use as recently as the 1960s.
Wedi’i godi o fewn muriau trefol Dinbych tua dechrau’r 14eg ganrif, Capel Hilari oedd man addoli gwreiddiol y dref a chafodd ei ddefnyddio tan ddiwedd y 1800au.