There are a wide range of issues that we need to think about in terms of permitted development, and noise nuisance is one of them. All new homes are required to meet current building regulations, including on fire safety, irrespective of the route to planning permission. However, some building regulations differ or do not apply where homes are delivered through material change of use rather than new build. That applies whether homes are delivered through permitted development or following an application for planning permission. All these issues—noise, fire safety and so on—need to be considered in the light of permitted development regulations.