Do you need planning permission for windows?

renovated and extended house with white render and grey windows
(Image credit: Jeremy Phillips)

Planning permission for windows is not always a clear cut subject. While permission is required for changes to the exterior of a building, including the installation of new windows or changes to existing windows, there are different types of planning permission — and different types of windows too. 

There’s the familiar, formal route where a local authority grants planning permission after a planning application. But, there’s also another type of planning permission where there has been a blanket national granting of permission by the government, which allows certain building works to be carried out without a formal planning application. These are known as Permitted Development or PD rights. So, what route do you take when it comes to windows?

Simon Rix
Simon Rix

Simon Rix is a professional planning consultant. He was a council officer and later an elected councillor before setting up Planix.UK Planning Consultants Ltd.

Simon Rix

Simon Rix is a professional planning consultant, who began his career working in local government in the 1990s. He was a council officer and later an elected councillor, so he knows how the planning system works from both sides. He went on to set up Planix.UK Planning Consultants Ltd; a consultancy company that advises self builders, home extenders and those taking on small to medium-sized building projects on planning permission.