“1.
“Article 135 1. Member States shall exempt the following transactions: … (j) the supply of a building or parts thereof, and of the land on which it stands … (k) the supply of land which has not been built on … (l) the leasing or letting of immoveable property. 2. The following shall be excluded from the exemption provided for in point (i) of paragraph 1:- (a) the provision of accommodation [in a hotel etc.] or holiday camps or … camping sites; (b) the letting of premises and sites for the parking of vehicles; (c) the letting of permanently installed plant and machinery; (d) the hire of safes. Member States may apply further exclusions …”
“… taking into account, first, that it follows from art 2(1) of the Sixth Directive that every supply of a service must normally be regarded as distinct and independent and, second, that a supply which comprises a single service from an economic point of view should not be artificially split, so as to distort the functioning of the VAT system, the essential features of the transaction must be ascertained in order to determine whether the taxable person is supplying the customer, being a typical customer, with several distinct principal services or with a single service.”
“21. … the Court has held that there is a single supply in particular in cases where one or more elements are to be regarded as constituting the principal supply whilst one or more elements are to be regarded, by contrast, as ancillary supplies which share the tax treatment of the principal supply … “22. The same is true where two or more elements or acts supplied by the taxable persons to the customer, being a typical customer, are so closely linked that they form, objectively, a single individual economic supply which it would be artificial to split.”