Replacement double and triple glazing windows

Free planning advice is available for residents if you are considering replacement windows or other energy efficiency measures via our Duty Planning Service

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Illustration of a thermal insulation plastic window frame profile isolated on white background. Cross-section diagram of a double glazed window pane UPVC profile reflecting cold and heat.

Energy efficient glazing covers both double and triple glazing. These are windows with two or more glass panes in a sealed unit.

Having energy efficient windows could help to reduce your carbon footprint and your energy bills.

Planning permission

Window alterations to a single house do not normally require planning permission, so long as there is no change in window frames and profile, including:

  • material
  • colour
  • size
  • opening style; and
  • design.

You will need to apply for planning permission if any of these apply:

  • the property is a flat or and maisonette
  • where the materials proposed to a single house are not of a similar appearance, and / or the method of opening is not similar to the original windows
  • llsted buildings
  • an Article 4 direction removes permitted development rights – Properties affected by Article 4 Directions.

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