In determining under ... ... section 166(2) of the Town and Country Planning Act 1990 whether—
part of a house, building or manufactory can be taken without material detriment or damage to the house, building or manufactory; or
part of a park or garden belonging to a house can be taken without seriously affecting the amenity or convenience of the house,
the Upper Tribunal shall take into account not only the effect of the severance but also the use to be made of the part proposed to be acquired and, in a case where the part is proposed to be acquired for works or other purposes extending to other land, the effect of the whole of the works and the use to be made of the other land.
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