21 Other interpretation of Part I.U.K.
(1)References in this Part to expenditure incurred on the construction of a building or structure do not include any expenditure incurred on the acquisition of, or of rights in or over, any land.
(2)A person who has incurred expenditure on the construction of a building or structure shall be deemed, for the purposes of any provision of this Part referring to his interest therein at the time when the expenditure was incurred, to have had the same interest therein as he would have had if the construction thereof had been completed at that time.
(3)Without prejudice to any of the other provisions of this Part or Part VIII relating to the apportionment of sale, insurance, salvage or compensation moneys, the sum paid on the sale of the relevant interest in a building or structure, or any other sale, insurance, salvage or compensation moneys payable in respect of any building or structure, shall, for the purposes of this Part, be deemed to be reduced by an amount equal to so much thereof as, on a just apportionment, is attributable to assets representing expenditure other than expenditure in respect of which an allowance can be made under this Part.
(4)In this Part “enterprise zone” means an area designated as such by an order made by the Secretary of State under powers in that behalf conferred by Schedule 32 to the Local Government, Planning and Land Act 1980 or, in Northern Ireland, by an order made by the Department of the Environment for Northern Ireland under Article 7 of the Enterprise Zones (Northern Ireland) Order 1981.
(5)In this Part “commercial building or structure” means a building or structure, other than an industrial building or structure or a qualifying hotel, which is used for the purposes of a trade, profession or vocation or, whether or not for such a purpose, as an office or offices but does not include any building or structure in use as, or as part of, a dwelling-house.
(6)For the purposes of this Part, and the other provisions of this Act which are relevant to this Part, any transfer of the relevant interest in a building or structure otherwise than by way of sale shall be treated as a sale of the interest for a price other than that which it would have fetched if sold on the open market.
(7)If sections 157 and 158 would not apart from this subsection have effect in relation to a transfer treated as a sale by virtue of subsection (6) above, those sections shall have effect in relation to it as if it were a sale falling within section 157(1)(a).
(8)Without prejudice to section 148(1), any reference in this Part to the incurring of expenditure on the construction of a building or structure does not include expenditure on the provision of machinery or plant or on any asset which has been treated for any chargeable period as machinery or plant.
This subsection shall not have effect in relation to any chargeable period or its basis period ending after 26th July 1989.
(9)Where section 16(4) of the 1968 Act (expenditure on preparatory work before the appointed day) applied immediately before the commencement of this Part in relation to any expenditure so that Chapter I of Part I of that Act (apart from section 1) applied to part of the expenditure separately from the remainder of the expenditure, then the provisions of this Part (apart from section 1) shall similarly apply to that part of the expenditure separately from the remainder.
(10)Any reference in this Part to any allowance or charge is, except where the context otherwise requires, a reference to such an allowance or charge under this Part, and a reference to an allowance made or postponed under this Part includes, where the context permits, a reference to an allowance relating to expenditure in respect of an industrial building or structure (or any building or structure treated as an industrial building or structure) made or postponed under any enactment repealed by this Act or by any Act repealed by this Act, notwithstanding that the repealed enactment is not re-enacted in this Act.