
1 

(1) These Regulations may be cited as the Building etc. (Amendment) (England) Regulations 2023.
(2) These Regulations come into force on 5th June 2023.
(3) These Regulations extend to England and Wales and apply in relation to buildings and building work in England.
(4) In this regulation “building” and “building work” have the meanings given in regulation 2(1) of the Building Regulations 2010.
2 

(1) The Building Regulations 2010 are amended as follows.
(2) In regulation 7(3)(k) (materials and workmanship) for “A1fl or A2fl-sl” substitute “A1fl or A2fl-s1”.
(3) In regulation 17(2A) (completion certificates) after sub-paragraph (c) insert—“
(cc) regulation 26C (target primary energy rates for new buildings);”.
(4) In regulation 19(1) (supervision of building work otherwise than by local authorities) after “27 (CO2 emission rate calculations),” insert “27A (fabric energy efficiency rate calculations), 27C (target primary energy rate calculations for new buildings),”.
3 
In the Building Regulations etc. (Amendment) (England) Regulations 2021 for regulation 17(1) (transitional provision) substitute—“
(1) The amendments made by Parts 2 and 3 of these Regulations (other than regulations 9, 12 and 13) do not apply in relation to—
(a) building work to which regulation 9 (transitional provisions) of the Building Regulations &c. (Amendment) (No. 2) Regulations 2013 applies; and
(b) building work on a particular building, where a building notice or an initial notice has been given to, or full plans have been deposited with, a local authority, in respect of that building before 15th June 2022, provided that the building work on that building is started before 15th June 2023.”.
Signed by authority of the Secretary of State for Levelling Up, Housing and Communities
Lee Rowley
Parliamentary Under Secretary of State
Department for Levelling Up, Housing and Communities
9th May 2023