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Part 2Approval of construction work etc.

Building warrants

10Building warrants: extension, alteration and conversion

(1)Despite section 9, a verifier must refuse to grant a building warrant (or an amendment to the terms of a warrant) under that section if the application relates to an extension to a building or alteration or conversion of all or part of a building and subsection (2) or (3) of this section is satisfied.

(2)This subsection is satisfied if—

(a)the whole building, at the time of the application, complied with building regulations, and

(b)the verifier considers that, as a result of the extension, alteration or conversion, the whole building as extended, altered or converted will fail to comply with building regulations.

(3)This subsection is satisfied if—

(a)the whole building, at the time of the application, failed to comply with building regulations, and

(b)the verifier considers that, as a result of the extension, alteration or conversion, the whole building as extended, altered or converted will fail to comply with building regulations to a greater degree.