# The Building etc. (Amendment) (Wales) Regulations 2026, Regulation 5: Amendments to the Building (Registered Building Control Approvers etc.) (Wales) Regulations 2024


(1) The Building (Registered Building Control Approvers etc.) (Wales) Regulations 2024 are amended as follows.
(2) In regulation 2, after paragraph (1) insert—
“(1A) In these Regulations “client”, “contractor”, “designer”, “domestic client”, “principal contractor”, “principal designer”, “sole contractor” and “sole or lead designer” have the meanings given in the 2010 Regulations.”
(3) After regulation 17 (local authority powers in relation to partly completed work) insert—
“Completion notices
17A (1) A person carrying out building work in circumstances where regulation 17(1) applies must, not more than 5 days after that work has been completed, give the building control authority a notice which complies with paragraph (2).
(2) The notice under paragraph (1) must include—
(a) the name, address, telephone number and (if available) email address of the client;
(b) the name, address, telephone number and (if available) email address of the principal contractor (or sole contractor) and principal designer (or sole or lead designer);
(c) a statement that the building work is complete;
(d) a statement, signed by the client, confirming that to the best of the client’s knowledge the work complies with all applicable requirements of the building regulations;
(e) subject to paragraph (3), a statement, given by each principal contractor (or sole contractor) for the work and each principal designer (or sole designer) for the work, signed by the person to which the declaration relates which includes—
(i) the name, address, telephone number and (if available) email address of that person,
(ii) the dates of their appointment, and
(iii) confirmation—
(aa) in the case of a principal contractor (or sole contractor), that they fulfilled their duties as principal contractor under Part 2A (dutyholders and competence) of the 2010 Regulations;
(bb) in the case of a principal designer (or sole designer), that they fulfilled their duties as principal designer under Part 2A (dutyholders and competence) of the 2010 Regulations.
(3) If for any reason the person carrying out building work is unable to include a statement for a person mentioned under paragraph (2)(e), the person carrying out the building work must include a statement giving the reasons why that person’s statement has not been included.”
(4) In Schedule 1 (forms), Form 10(W) is amended as follows—
(a) after paragraph 4 insert—
“5 [(4) confirms [it has/they have] received notice in accordance with regulation 16 of the Building (Registered Building Control Approvers etc.) (Wales) Regulations 2024 and the contravention has not been remedied within the time period. The contravention is] (6)”;
(b) in the section headed “NOTES”, after paragraph (5) insert—
“(6): Delete this statement if it does not apply. If it applies, specify the provision(s) of the building regulations (including the specific requirement) which is contravened.”
(5) In Schedule 2 (grounds for rejecting an initial notice, an amendment notice or a plans certificate combined with an initial notice)—
(a) at the beginning of paragraph 12(2)(a), insert “subject to sub-paragraph 3,”;
(b) after paragraph 12(2) insert—
“(3) Sub-paragraph (2)(a) does not apply if—
(a) the earlier notice has been cancelled by the client or the approver,
(b) the client has received a notice of contravention in accordance with regulation 16(1), and
(c) the client has failed to remedy the contravention in the time specified in regulation 16(3).”

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Source: https://www.legislation.gov.uk/wsi/2026/60/regulation/5 (the official version)
Page: https://openlegislation.uk/building-etc-amendment-wales-regulations-2026/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.