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Do I need permission to create an opening for a new window?
Inserting new windows which look similar to those previously used in the house will often not require planning permission. Some rules apply to new additions, for example if they are on an upper-floor side elevation they must be obscure glazed and non-opening or more than 1.7 metres above the floor.
Installing a new bay window on the front elevation would require planning permission as it is classed as a forward extension.
If you live in a listed building or conservation area you should contact your local planning authority.
Any new openings will have to comply with building regulations, this may impact thermal heat loss, structure, ventilation and fire safety.
You can use a member of a competent person scheme to complete any work, this will ensure that the work is completed in-line with regulations.
Common Questions
A ‘P certificate’ may refer to confirmation that electrical installations within a building are compliant with Approved Document P of the building regulations.
An electrician who is Part P certified is able to self-certify domestic work they complete, meaning you do not have to submit a building notice. To ensure your electrician is Part P certified, use a registered competent person.
You don't actually need to own land or property to apply for planning permission for it. This means you can apply for permission before deciding whether or not to buy a piece of land.
The following people must be informed about a planning application relating to land or buildings that they have an interest in:
- The owner or all the part-owner/s (if you are not the full owner)
- Any leaseholders with at least seven years' lease remaining
- Any agricultural tenants.
You can contact your local planning authority for pre-application advice or book an appointment with our Planning Guidance Service.
In many cases, yes. Converting a single residential property (Class C3) into a small House in Multiple Occupation (HMO) for up to six occupants can often be done under permitted development rights, specifically under Class L. This means that planning permission isn’t usually required.
However, if your property is located in an area covered by an Article 4 Direction, permitted development rights are removed, and you would need to apply for full planning permission to change the use from C3 (dwellinghouse) to C4 (HMO).
Read more information about use class changes on Planning Portal
The UK Government provide access to public land records, allowing you to check certain restrictions on land. You can use the online tool to check whether your land is in a conservation area.
VisitGOV.UK and use the planning data map.
(This map covers planning data for England).
If you are unsure you should contact your local planning authority.
For houses, replacing windows with double glazing usually doesn’t require planning permission, provided the style and appearance are similar to the original. However, if you live in a flat/maisonette, listed building, or a conservation area, planning permission or listed building consent may be required, especially if the changes affect the external appearance.
Read more about planning permission for windows and doors for houses
Read about planning permission for windows and doors for flats and maisonettes
