Question to the Department for Levelling Up, Housing & Communities:

To ask the Secretary of State for Communities and Local Government, pursuant to the Answer of 20 October 2015 to Question 12052, for what reasons Part M building regulations do not apply to extensions to dwellings.

When Part M was introduced in 1999 the then Government decided not to apply the requirements to extensions to dwellings. To do so would require alterations to the existing dwelling (or the approach to the dwelling or extension) in order to accommodate Part M requirements which are not considered to be reasonably practical for dwellings built before Part M was introduced.