This is independently assessed by the Valuation Office Agency​​​​​​​​​​​​​​​​ and represents the open market rental value of the property as at the 1 April 2021.
Caiff y gwerth hwn ei asesu’n annibynnol gan Asiantaeth y Swyddfa Brisio​​​​​​​​​​​​ ac mae’n cynrychioli gwerth rhent yr eiddo ar y farchnad agored fel yr oedd ar 1 Ebrill 2021​.