Replacing windows and doors is one of the most common home improvements, and for many houses it does not need planning permission at all. There are important exceptions, though, so it is worth checking before you order.
The general rule
For most houses in England, replacing existing windows and doors with similar ones is covered by permitted development rights, so you do not need to apply for planning permission. The new ones should look broadly the same as the old and not change the building’s appearance.
When you need to be more careful
- Listed buildings: you will almost always need listed building consent, even for like-for-like replacements.
- Conservation areas: local rules often control the style, material and appearance of windows facing the street.
- Article 4 directions: some councils remove permitted development rights in particular streets or areas.
- Flats and maisonettes: permitted development rights are more limited, and leases may set their own rules.
- Planning conditions: some newer properties have conditions attached that restrict changes.
If in doubt, contact your local planning authority. It is free and quick, and it avoids expensive mistakes.
Building Regulations are separate
Even when planning permission is not needed, replacement windows and doors must meet Building Regulations for energy efficiency, safety and ventilation. Using a FENSA-registered installer means they can self-certify the work and issue you a certificate, which you will need when selling your home.
Period and heritage properties
If your home has character, flush sash and sliding sash windows are designed to look right on traditional buildings, and secondary glazing can improve comfort without changing the original windows at all. We are happy to talk through the options.