Planning Permissions
If you are planning a home improvement on your home, it would be prudent to contact your local authority to check whether you require planning permission. That said, you shouldn’t need planning permission for double or triple glazed windows as this is likely to have very little impact on your neighbours and neighbourhood.
There can be a few exceptions:
If your house is a listed buildingIf your house is in a conservation area See below for more explanations on installing to listed buildings or in conservation areas.
Adding bay windows to your house (if they were not there previously) classes as building an extension and, therefore, may be subject to planning permission. Celsius Home Improvements will handle any planning permission that may be required on your behalf.