57.—(1) This regulation contains rules for the purposes mentioned in section 14(7) of the Act.
(2) A property consisting of a building or self-contained part of a building shall be treated as contained in an authority’s area if the greater or greatest part of the building of which it consists, or (in the case of property which is a self-contained part of a building) of the building of which it is part, is treated by virtue of regulation 54(3) or (5) as situated in its area.
(3) A property consisting of a caravan shall be treated as contained in an authority’s area if the greater or greatest part of the caravan is treated by virtue of regulation 54(4) or (5) as situated in its area.
(4) In the following provisions of this regulation–
(a)the relevant authority is the charging authority in whose area a property is, or is treated as, contained; and
(b)the relevant building is the building of which a property consists or of which a property is a self-contained part; and
(c)the relevant caravan is the caravan of which a property consists.
(5) Where the relevant building or relevant caravan (so far as it is in fact contained within the relevant authority’s area) is contained wholly within a single part of the authority’s area for which it has set an amount for its personal community charge for a chargeable financial year, the property concerned shall be treated as contained within that part.
(6) Where the relevant building or relevant caravan is situated within more than one part of the area of the relevant authority for which it has set amounts for its personal community charge for the year, the property concerned shall be treated as contained in whichever of those parts contains the greater or greatest part of the building or caravan, ascertained by reference to its superficial extent.
(7) Where it appears to the relevant authority that no such part of a building or caravan can reasonably be ascertained to be greater than any other for the purposes of paragraph (6), the property concerned shall be treated as falling in such part of its area (being a part within which some of the building or caravan falls) as is determined by the authority.