Replacement of windows and doors

You can replace single glazed windows with double glazing if both the following conditions apply:

• you are not living in a conservation area or listed building
• there is no change in:
  • material
  • colour
  • size
  • design

If you are planning on changing the material of your windows, for example replacing timber windows with uPVC windows, you will need planning permission.

If you live in a conservation area or listed building, it is likely that planning permission will be required to change windows.