They are selected according to the quality of the area as a whole, including the contribution of key individual or groups of buildings, trees, open space and streetscape.
Cânt eu dethol yn ôl ansawdd yr ardal yn gyffredinol, gan gynnwys cyfraniad allweddol adeiladau unigol neu grwpiau o adeiladau, coed, mannau agored a’r strydlun.