Changing windows
If you want to alter or replace a window in a conservation area, you may need to apply for prior approval and listed building consent.
When prior approval is needed
You must apply for a determination on prior approval if:
- the window is on the front (principal) elevation, or
- the window is on a side elevation that faces a road, and
- the new window is not the same, or substantially the same, as the one being replaced
We will assess whether the new window is the same in terms of:
- how it opens and closes
- the number, layout and colour of the panes
- the size and colour of the frame or any astragal bars
When prior approval is not needed
You do not need prior approval if:
- the window is not on the front or a side that faces a road, and
- there is no Article 4 Direction removing permitted development rights in your area
See if an Article 4 Direction applies to your property
Design requirements
The new window must match the age and style of the building. We will not approve designs that harm the character or appearance of the conservation area.
For example, if the building has traditional sash and case windows on the front or side, we expect the replacement to match that style.