enter Building Number or Building Name, Address including Town or City, County, Postcode, select Country from the dropdown, then select Submit
nodwch Rhif yr Adeilad neu Enw’r Adeilad, eich Cyfeiriad gan gynnwys Tref neu Ddinas, Sir, Cod Post, dewiswch Gwlad o'r gwymplen, yna dewiswch Cyflwyno