Housing Improvement
The question
To ask the Secretary of State for Housing, Communities and Local Government, what her Department’s policy is on consequential improvements in relation to residential extensions.
Answered by Ministry of Housing, Communities and Local Government
The Government's requirements relating to consequential improvements are set out in Regulation 28 of the Building Regulations 2010.
Consequential improvements may be required where building work is carried out to an existing building with a total useful floor area exceeding 1,000 square metres, including where an extension is constructed. Where Regulation 28 applies, additional energy efficiency improvements should be made where they are technically, functionally and economically feasible.
For extensions to existing dwellings, Approved Document L sets out what may, in ordinary circumstances, be accepted as one way to comply with Building Regulation 28.
The extension of a dwelling should also comply with all other relevant Building Regulations.
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