ratable value
or rateable value
nBrit (formerly) a fixed value assigned to a property by a local authority, on the basis of which variable annual rates are charged
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014