To understand why your property is in a certain band, please go to the How Domestic Properties are Assessed for Council Tax Bands page on Gov.uk website.
Er Mwyn deal pam bod eich eiddo mewn band penodol ewch i ddolen Sut y Caiff Eiddo Domestig ei Asesu ar Gyfer Bandiau Treth Cyngor ar wefan Gov.uk.