IS PLANNING PERMISSION REQUIRED TO REPLACE EXISTING WINDOWS WITH NEW TIMBER CASEMENT WINDOWS?
New timber casement windows generally do not require planning permission however of you home is in a Conservation Zone it is always worth checking with your local planning department.
If your property has an Article 4 Direction then your permitted development rights have been restricted so planning permission will be required.
If the property is Listed then Listed Building Consent will be required before carrying out any works.