Aesthetic value: we may value historic assets for their visual qualities, whether they result from conscious design and craftsmanship, or from the fortuitous effect of change over time.
Gwerth esthetig: gallwn werthfawrogi asedau hanesyddol am eu rhinweddau gweledol, yn sgil crefftwaith a dylunio bwriadol, neu oherwydd effeithiau buddiol newidiadau dros amser.