“Mae tai yn flaenoriaeth i Lywodraeth Cymru. Gallai treth ar dir gwag atal yr arfer o fancio tir a pheidio datblygu tir o fewn yr amserlen ddisgwyliedig.
“Housing is a priority for the Welsh Government. A tax on vacant land could prevent the practice of land banking and land not being developed within the expected timescales.