9.41.2.

(1) Where proposed construction will result in a change of use described in Clauses 9.41.1.1.(1)(a) to (d), additional construction shall be required in order that the building or part of a building subject to the change of use conforms to the requirements of Sections 9.5. and 9.7., Subsection 9.10.17., Sections 9.31. and 9.32., and Subsections 9.34.1. to 9.34.3. as they apply to the new major occupancy that the building or part of a building is to support.

(2) For the purposes of this Article, existing buildings shall be classified as to their construction and occupancy as provided for in Sentence 11.2.1.1.(1)v1.

(1) The performance level of a building after construction shall not be less than the performance level of the building prior to construction.

(2) For the purposes of Sentence (1), reduction of performance level shall be determined in accordance with Articles 11.4.2.1., 11.4.2.3.v1v2 and 11.4.2.5.

(3) Where the proposed construction would reduce the performance level of an existing building, compensating construction shall be required in conformance with Articles 11.4.3.1., 11.4.3.2., 11.4.3.4.v1v2 and 11.4.3.6.

(4) Section 11.5. applies in respect of the requirements of Sentences 11.4.3.4.(1)v1v2, (3) and (4).