Written Question·Ministry of Housing, Communities and Local Government·UIN 85779
Building Regulations: Windows
Tabled: 28 October 2025
Answered: 4 November 2025
Question
Sir James Cleverly
Conservative — Braintree
To ask the Secretary of State for Housing, Communities and Local Government, whether he plans to review Document O building regulations for windows, in the context of encouraging house building.
Answer
Samantha DixonPart O of the Building Regulations ensures new housing is built to mitigate the risk of overheating. This came into effect in June 2022.Since October 2023, the Building Safety Regulator has a statutory duty under the Building Safety Act 2022 to keep the s...
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