This section applies to a transfer of land forming part only of a holding of land to an authority exercising or having compulsory powers where—
If the transferor so claims, the transfer shall not be treated for the purposes of this Act as a disposal, but all sums which, if it had been so treated, would have been brought into account as consideration for that disposal in the computation of the gain shall be deducted from any expenditure allowable under Chapter III of Part II as a deduction in computing a gain on any subsequent disposal of the holding.
A claim under subsection (2) above shall be made—
For the purposes of this section the holding of land shall comprise only the land in respect of which the expenditure allowable under paragraphs (a) and (b) of section 38(1) would be apportioned under section 42 if the transfer had been treated as a disposal (that is, as a part disposal of the holding).
In this section references to a holding of land include references to an estate or interest in a holding of land, not being an estate or interest which is a wasting asset, and references to part of a holding shall be construed accordingly.
In this section "authority exercising or having compulsory powers" means, in relation to the land transferred, a person or body of persons acquiring it compulsorily or who has or have been, or could be, authorised to acquire it compulsorily for the purposes for which it is acquired, or for whom another person or body of persons has or have been, or could be, authorised so to acquire it.