Listing is not a preservation order but it is intended to help manage change and protect the building, its setting and its features from unsympathetic works that could damage its special interest.
Nid yw rhestru yn orchymyn cadw ond bwriedir iddo helpu i reoli newid a gwarchod yr adeilad, ei leoliad a’i nodweddion rhag gwaith anghydnaws a allai niweidio ei ddiddordeb arbennig.