Rules & consents
Planning Permission
The short answer
Many window and door replacements don't need planning permission. It's more likely to be needed for flats, where an Article 4 direction applies, for new or enlarged openings, or where conditions on a previous permission apply.
Last reviewed September 2026 · General guidance, not legal advice
Where to confirm
The Planning Portal's guidance and your local planning authority are the definitive sources. Some councils offer pre-application advice.