6(1)This paragraph has effect for the purposes of paragraphs 2 to 5.U.K.
(2)“"Building”” includes any structure.
(3)“"Relevant distance””, in relation to any work, means—
(a)100 metres in any of the following cases—
(i)where the work is comprised in so much of Works Nos. 1/1 or 1/15 as lies between their commencement and the point where they pass beneath Parkway in the London Borough of Camden;
(ii)where the work is comprised in so much of Works Nos. 1/1 or 1/15 as lies between the points where they pass beneath Victoria Road and Chase Road in the London Borough of Camden;
(iii)where the work is comprised in Work No. 1/16;
(iv)where the work relates to the making of a shaft;
(b)50 metres in any other case.
(4)A building (or, in the case of paragraph 5, apparatus or pipe-line) is within the ““relevant distance”” of a work if all or part of it is within that distance.
(5)In the case of a work under the surface of the ground, a reference to a building (or, in the case of paragraph 5, apparatus or pipe-line) within the relevant distance of that work includes a reference to a building (or apparatus or pipe-line) all or part of which is within the relevant distance of any point on the surface below which the work is situated.