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The Building Regulations 2010, Section 27B is up to date with all changes known to be in force on or before 15 August 2024. There are changes that may be brought into force at a future date. Changes that have been made appear in the content and are referenced with annotations.
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27B.—(1) This regulation applies where a dwelling is erected and regulation 26B applies.
(2) Not later than the day before the work starts, the person carrying out the work must give the local authority a notice which specifies—
(a)the target fabric performance values for the dwelling F1[F3, calculated and expressed in accordance with the methodology approved pursuant to regulation 24];
(b)the F1F4... fabric performance values for the dwelling as designed F1[F5, calculated and expressed in accordance with the methodology approved pursuant to regulation 24]; and
(c)a list of specifications to which the dwelling is to be constructed.
(3) Not later than five days after the work has been completed, the person carrying out the work must give the local authority—
(a)a notice which specifies—
(i)the target fabric performance values for the dwelling F1[F6, calculated and expressed in accordance with the methodology approved pursuant to regulation 24];
(ii)the F1F7... fabric performance values for the dwelling as constructed F1[F8, calculated and expressed in accordance with the methodology approved pursuant to regulation 24]; and
(iii)whether the dwelling has been constructed in accordance with the list of specifications referred to in paragraph 2(c), and if not a list of any changes to those specifications; or
(b)a certificate of the sort referred to in paragraph (4) accompanied by the information referred to in sub-paragraph (a).
(4) A local authority is authorised to accept, as evidence that the requirements of regulation 26B have been satisfied, a certificate to that effect by an energy assessor who is accredited to produce F1[F9energy performance certificates] for that category of building.
(5) In this regulation, “specifications” means specifications used for the calculation of the fabric performance values.]
Textual Amendments
F1Reg. 27B inserted (W. for remaining purposes) (8.6.2018) by The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 7(7) (with reg. 29)
F2Regs. 27A, 27B inserted (W. but not in relation to excepted energy buildings) (31.7.2014) by The Building (Amendment) (Wales) Regulations 2014 (S.I. 2014/110), regs. 1(3), 7 (with reg. 1(2))
F3Words in reg. 27B(2)(a) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(a) (with reg. 1(3))
F4Word in reg. 27B(2)(b) omitted (W. but not in relation to excepted energy buildings) (17.6.2016) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(b) (with reg. 1(3))
F5Words in reg. 27B(2)(b) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(b) (with reg. 1(3))
F6Words in reg. 27B(3)(a)(i) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(c) (with reg. 1(3))
F7Word in reg. 27B(3)(a)(ii) omitted (W. but not in relation to excepted energy buildings) (17.6.2016) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(d) (with reg. 1(3))
F8Words in reg. 27B(3)(a)(ii) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(d) (with reg. 1(3))
F9Words in reg. 27B(4) substituted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(e) (with reg. 1(3))
Modifications etc. (not altering text)
C1Reg. 27B applied (with modifications) by S.I. 2010/2215, reg. 20(1)(2B) (as inserted (W.) (31.7.2014) by The Building (Amendment) (Wales) Regulations 2014 (S.I. 2014/110), regs. 1(3), 13 (with reg. 1(2))) (as amended: (W.) (8.6.2018) by S.I. 2018/558, regs. 1(2), 21 (with reg. 29); and (W.) (25.4.2024) by S.I. 2024/447, regs. 1(1), 3(h) (with reg. 6))
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