Mae'r Gweinidog wedi ysgrifennu at Ysgrifennydd Ariannol newydd y Trysorlys i dynnu sylw at bwysigrwydd bwrw ymlaen â'r cais am bwerau ar gyda'r treth ar dir gwag.
The Minister has written to the new Financial Secretary to the Treasury to highlight the importance of making progress with the request for powers for a vacant land tax.