(1)Except in so far as any different boundaries or pertinents are constituted by virtue of the title to the tenement, or any enactment, the boundaries and pertinents of sectors of a tenement shall be determined in accordance with sections 2 and 3 of this Act.
(2)In this Act, “title to the tenement” means—
(a)any conveyance, or reservation, of property which affects—
(i)the tenement; or
(ii)any sector in the tenement; and
(b)where an interest in—
(i)the tenement; or
(ii)any sector in the tenement,
has been registered in the Land Register of Scotland, the title sheet of that interest.