What s. 22 attempts to assess is the annual value of the property consisting of any building or land appurtenant thereto, of which the appellant is the owner,, and which has not been put to use for the purposes of its business or profession by it. The rent being charged by the appellant, if so, is only a surrogate measure of the said annual value. The expenditure on the aforesaid items, i.e., the salary (including bonus) to the maintenance staff of the facilities as electric motors, lift, caning, etc., as well as that on the electricity consumed in respect of any common area and the electric motors, is not attributable directly to the house property as such, but to its enjoyment by the tenants/users thereof