F6[11. (1) Subject to articles 3 and 8 and sub-articles (3) and (4) of this article, these Regulations shall apply to—

(a) all works in connection with the material alteration or extension of a building; and

(b) every part of a building affected by works referred to in paragraph (a) but only to the extent of prohibiting any works which would cause a new or greater contravention, in such building, of any provision of these Regulations.

F7[(2) In this article “material alteration” means an alteration where the work or part of the work carried out by itself would be the subject of a requirement of Part A, B or M of the Second Schedule.]

(3) These Regulations shall apply to any repair or renewal likely to affect the structural integrity of the building or building element being repaired or renewed.

(4) Part L of the Second Schedule of these Regulations shall apply to renewal works to existing buildings involving the replacement of external doors, windows and rooflights.

F8[(5) Part L of the Second Schedule of these Regulations shall apply to major renovations in respect of buildings other than dwellings.]]

F9[(6) Part L6 of the Second Schedule of these Regulations shall apply to major renovations in respect of dwellings.]

F10[(7) Part L of the Second Schedule to these Regulations shall not apply to works (including extensions) tfo an existing building which is a ‘protected structure’ or a “proposed protected structure” within the meaning of the Planning and Development Act 2000 (No. 30 of 2000).]