Planning Permission For Oriel Windows




What is a bay window?

What is an oriel window?

An oriel window is a type of bay window that protrudes from the main wall of a building but does not fully reach the ground. It can be supported by either structural brackets or cantilevers. Oriel windows are typically found projecting from upper floors, although they are occasionally used on the ground floors as well.

Oriel windows can be constructed using various materials such as aluminum, timber, structural glass, or any other suitable material. Glass-box oriel windows refer to oriel windows made from glass units joined together with structural silicone at the corners.

Planning permission for oriel windows

Windows installations usually do not require planning permission, but glass-box oriel windows are considered to be an extension of the existing structure because they project from the main wall of the building. Therefore, they may need planning permission depending on the following conditions:

  • Replacing existing one: You don’t normally need planning permission when you are replacing an existing bay window. However, it is crucial to ensure that any work carried out does not harm the integrity of your property.
  • Converting flat window to oriel design: If you are replacing a flat window with an oriel window, you need planning permission, depending on the location of the installation and your home.
  • Adding a new one: Adding a new oriel window to the front of your house will require planning permission, whereas the side or back sides generally do not.

In Conservation Areas

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