PART 2Control of Building Work

Requirements relating to material change of use6

1

Where there is a material change of use of the whole of a building, such work, if any, shall be carried out as is necessary to ensure that the building complies with the applicable requirements of the following paragraphs of Schedule 1—

a

in all cases, B1 (means of warning and escape)

  • B2 (internal fire spread—linings)

  • B3 (internal fire spread—structure)

  • B4(2) (external fire spread—roofs)

  • B5 (access and facilities for the fire service)

  • C2(c) (interstitial and surface condensation)

  • F1 (ventilation)

  • G1 (cold water supply)

  • G3(1) to (3) (hot water supply and systems)

  • G4 (sanitary conveniences and washing facilities)

  • G5 (bathrooms)

  • G6 (kitchens and food preparation areas)

  • F1...

  • H1 (foul water drainage)

  • H6 (solid waste storage)

  • J1 to J4 (combustion appliances)

  • L1 (conservation of fuel and power)

  • P1 (electrical safety);

b

in the case of a material change of use described in regulation 5(c), (d), (e) or (f), A1 to A3 (structure);

c

in the case of a building exceeding fifteen metres in height, B4(1) (external fire spread—walls);

d

in the case of a material change of use described in regulation 5(a), (b), (c), (d), (g), (h), (i) or, where the material change provides new residential accommodation, (f), C1(2) (resistance to contaminants);

e

in the case of a material change of use described in regulation 5(a), C2 (resistance to moisture);

f

in the case of a material change of use described in regulation 5(a), (b), (c), (g), (h) or (i), E1 to E3 (resistance to the passage of sound);

g

in the case of a material change of use described in regulation 5(e), where the public building consists of or contains a school, E4 (acoustic conditions in schools);

h

in the case of a material change of use described in regulation 5(a) or (b), G2 (water efficiency) and G3(4) (hot water supply and systems: hot water supply to fixed baths);

i

in the case of a material change of use described in regulation 5(c), (d), (e) or (j), M1 (access and use).

2

Where there is a material change of use of part only of a building, such work, if any, shall be carried out as is necessary to ensure that—

a

that part complies in all cases with any applicable requirements referred to in paragraph (1)(a);

b

in a case in which sub-paragraphs (b), (e), (f), (g) or (h) of paragraph (1) apply, that part complies with the requirements referred to in the relevant sub-paragraph;

c

in a case to which sub-paragraph (c) of paragraph (1) applies, the whole building complies with the requirement referred to in that sub-paragraph; and

d

in a case to which sub-paragraph (i) of paragraph (1) applies—

i

that part and any sanitary conveniences provided in or in connection with that part comply with the requirements referred to in that sub-paragraph; and

ii

the building complies with requirement M1(a) of Schedule 1 to the extent that reasonable provision is made to provide either suitable independent access to that part or suitable access through the building to that part.