# The Building (Higher-Risk Buildings Procedures) (Wales) Regulations 2025, Regulation 18: Change control

Extent: E+W

(1) This regulation applies where one or more of the following changes (“controlled change”) is proposed—
(a) a change to any current plans of any work or proposed work or the carrying out of work except under the current plans;
(b) a change to any stage of HRB work, including adding or removing a stage;
(c) a change to any strategies, policies or procedures described in any current agreed document.
(2) Before any controlled change may be carried out, the client must ensure—
(a) a record is made of the controlled change under regulation 19, and
(b) a revised version of any agreed document affected by the controlled change is produced.
(3) Where the controlled change is a notifiable change, the client or someone acting on behalf of the client must notify the building control authority under regulation 20.
(4) A notifiable change must not be carried out, and the work to which it relates must not start, until the notification referred to in paragraph (3) has occurred.
(5) Where the controlled change is a major change, the client must make an application for building control approval in respect of the change (a “change control application”) to the building control authority under regulation 21.
(6) A major change must not be carried out, and the work to which it relates must not start, until the building control approval sought in the change control application is granted.
(7) Paragraph (8) applies where two or more controlled changes are related to the same change to the building work (“related changes”) and at least one of those controlled changes is a major change and at least one is a notifiable change.
(8) Where this paragraph applies—
(a) all the major changes which are related changes may be included in the same change control application,
(b) any notifiable changes which are related changes may be included in that change control application, and
(c) in relation to any change which is a notifiable change, the requirements of regulation 20 (change control: notification requirements) are satisfied by providing details of the change as part of that application.
(9) Where two or more controlled changes are not related to the same change to the building work they must not be included in the same change control application.
(10) Paragraph (11) applies where a change control application has been submitted in relation to a proposed change (“the main change”) and it is proposed another controlled change (excluding a change which is only a recordable change) is to be carried out which is consequential on the main change (“a consequential change”) but was not included in an application of the type referred to in paragraph (8).
(11) Where this paragraph applies—
(a) a consequential change which is a notifiable change must not be notified under regulation 20;
(b) a change control application in relation to a consequential change which is a major change must not be made under regulation 21,
until the building control authority has notified the client of the outcome of the change control application in relation to the main change.
(12) In this regulation—
“current agreed document” (“dogfen gytunedig gyfredol”) means the document that is an agreed document at the time the controlled change is proposed;
“current plans” (“planiau cyfredol”) means the plans that are an agreed document at the time the controlled change is proposed.

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Source: https://www.legislation.gov.uk/wsi/2025/1321/regulation/18 (the official version)
Page: https://openlegislation.uk/building-higher-risk-buildings-procedures-wales-regulations-2025/regulation-18
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.