4(1)For the purposes of this Schedule gross floor space shall be ascertained by external measurement.
(2)Where different parts of a building are used for different purposes, floor space common to those purposes shall be apportioned rateably.
4(1)For the purposes of this Schedule gross floor space shall be ascertained by external measurement.
(2)Where different parts of a building are used for different purposes, floor space common to those purposes shall be apportioned rateably.