The Building (Amendment) (Wales) Regulations 2018 (SI 2018/552 (W.94))

Commencement: 1st November 2018

Amends: The Building Regulations 2010 (SI 2010/2214) as amended

Mini summary of the 2010 Regulations

These Regulations impose requirements on people carrying out “building work” which is defined in regulation 3 as the erection or extension of a building; the provision or extension of a controlled service or fitting; the material alteration of a building or controlled service or fitting; work required in relation to a material change of use; insertion of insulating material into a cavity wall; work involving underpinning of a building; work required to replace or renovate thermal elements; work relating to a change in a building’s energy status and work relating to improvement of the energy status of certain large existing buildings.


These Regulations amend Regulation 36 (water efficiency of new dwellings). They introduce a new requirement that where a dwelling is erected the potential consumption of water must not exceed 110 litres per person per day. The current requirement of 125 litres remains where there is a material change of use such that a building is used as a dwelling or contains a flat, in either case where previously it did not.

Paragraph G2A (water efficiency of new buildings other than dwellings and healthcare buildings) is inserted into Part G of Schedule 1. Paragraph G2A applies to building work that consists of the erection or extension of a building which is not a dwelling or healthcare building. Reasonable requirements must be made in the design and installation of any sanitary convenience, washbasin or shower so as to prevent the undue consumption of water.

Part Q (security) is inserted in Schedule 1. Part Q only applies when a dwelling is erected. Reasonable provision must be made to deter and resist unauthorised access to any dwelling and any part of a building from which access can be gained to a flat within a building.

Link to legislation.gov.uk