An executive agency of HMRC that provides valuations and property advice to support taxation and benefits to the government and billing authorities in Wales and England.
Un o asiantaethau gweithredol CThEF sy'n darparu prisiadau a chyngor ar eiddo er mwyn cefnogi trethiant a buddiannau i'r llywodraeth ac awdurdodau lleol yng Nghymru a Lloegr.