Of all chargeable second homes (including caravans) in Gwynedd, 83% (3,640 homes) were charged a council tax premium.
O’r holl ail gartrefi trethadwy (gan gynnwys carafannau) yng Ngwynedd, cafodd premiwm y dreth gyngor ei godi ar 83% ohonynt (3,640 o gartrefi).