A wnaiff y Gweinidog esbonio pam mae Llywodraeth Cymru yn credu nad yw Ysgol Ganolraddol y Bont-faen i Ferched yn adeilad sy'n dangos "rhinweddau pensaernïol a hanesyddol o arwyddocâd cenedlaethol" fel y nodir yn y meini prawf rhestru cenedlaethol?
To be listed a building must be of special architectural or historic interest at the national level. Unfortunately, the former school no longer survives as built. Its original form has been compromised by large-scale alterations in 1909 and the more recent insertion of UPVC windows was very damaging to its surviving architectural character. This may seem like a minor incident but the impact on the architectural interest is very serious and undermines any claim to definite quality and character. The better preserved a building is architecturally, the better it is able to illustrate its historic interest.
The fact that the building does not survive as built, and that its final form has been compromised by alteration undermines any case for listing against the criteria of architectural interest, historic interest, or historical association.