Where compensation becomes payable under section 107 which includes compensation for depreciation of an amount exceeding £20, the local planning authority—
In carrying out an apportionment under subsection (1)(a), the local planning authority shall divide the land into parts and shall distribute the compensation for depreciation between those parts, according to the way in which different parts of the land appear to the authority to be differently affected by the order or, in a case falling within section 108, the relevant planning decision, in consequence of which the compensation is payable.
Regulations under this section shall make provision, subject to subsection (4)—
Where on a reference to the Upper Tribunal under this section it is shown that an apportionment—
the Tribunal shall not vary the apportionment in such a way as to be inconsistent with the previous apportionment in so far as it relates to those matters.
On a reference to the Upper Tribunal by virtue of subsection (3), subsections (1) and (2), so far as they relate to the making of an apportionment, shall apply with the substitution, for references to the local planning authority, of references to the Upper Tribunal.
In this section and section 110—
"compensation for depreciation" means so much of any compensation payable under section 107 as is payable in respect of loss or damage consisting of depreciation of the value of an interest in land,
"interest" (where the reference is to an interest in land) means the fee simple or a tenancy of the land and does not include any other interest in it, and
"relevant planning decision" means the planning decision by which planning permission or permission in principle is refused, or by which planning permission is granted subject to conditions other than those previously imposed by the development order , the local development order or the neighbourhood development order.