Replacing doors on a house in England is usually permitted development, so it does not need planning permission, as long as the new doors are similar in appearance to the existing ones. Flats and maisonettes, listed buildings and homes covered by an Article 4 direction are the main exceptions, and may need consent.
This guide explains the permitted development basics, when consent is needed, how Wales, Scotland and Northern Ireland differ, when the Party Wall etc. Act 1996 comes in, and how to check your own property. Planning is separate from the Building Regulations, which usually apply as well. It is general guidance, so confirm the position for your home with your local council.
What is permitted development?
Permitted development rights let householders in England carry out certain work on a house without applying for planning permission, because national rules grant the permission in advance. Replacing windows and doors is one of those works, provided the result is similar in appearance to the house as it stands.
The rights apply to houses. They do not apply to flats or maisonettes, and they can be removed or limited in certain places, which is why the same door can be fine on one street and need consent on the next.
Permitted development is a national baseline, not a blanket permission for every property. The rules are set out in government technical guidance for householders, and your local council is the body that decides whether a particular change falls within them. If the council takes a different view after the work is done, it is the owner who has to put things right, so it pays to be sure before ordering a made-to-measure door.
Can I put sliding doors at the back of my house?
Usually, yes. Swapping an old patio door or French doors for a sliding door at the back of a house is generally treated as a replacement, and rear changes are less likely to raise planning questions because they are not seen from the road. Turning a rear window into a door opening, or widening an existing one, can also fall within permitted development for a house, but check before work starts, and remember that it is structural work under the Building Regulations.
Sliding doors that are part of a new extension are considered with the extension itself: if the extension is permitted development, its doors normally are too; if it needs planning permission, the doors are shown on the plans. The 'similar appearance' test is about the look from outside, so a slider in a colour that suits the house rarely causes a problem, while a dramatic change on a prominent front elevation is where questions arise.
When do sliding doors need planning consent?
- Flats and maisonettes. They do not have householder permitted development rights, so changing an external door can need planning permission. Leaseholders usually need the freeholder's consent too.
- Listed buildings. Listed building consent is needed for alterations that affect the character of the building, which can include replacing doors. Listing covers the whole building, not just the front, so this can apply to a door at the back too.
- Article 4 directions. Many conservation areas have an Article 4 direction that removes some permitted development rights, often including changes to doors and windows on elevations facing a road.
- Homes with planning conditions. Some newer homes had permitted development rights removed by a condition on the original planning permission.
Carrying out work that needed consent without getting it can lead to enforcement action by the council, so check first if any of these might apply.
What are the rules in Wales, Scotland and Northern Ireland?
Each nation runs its own planning system. Wales has its own permitted development rules for householders, published by the Welsh Government. Scotland's householder permitted development rights are set out in Scottish Government guidance. In Northern Ireland, planning applications are handled by district councils, with guidance on nidirect.
The broad idea is similar, but the detail differs, so do not rely on the English rules outside England. Check the official guidance for your nation, listed in the sources below, or ask your local planning authority before you order.
Does the Party Wall etc. Act 1996 apply?
It can, if you are forming or widening an opening and the new steel beam bears on a party wall, the wall you share with a neighbour in a semi-detached or terraced house. In England and Wales, the Act requires you to give your neighbour notice before certain work to a party wall, such as cutting into it to take the end of a beam.
If your neighbour agrees in writing, the work can go ahead; if not, a party wall surveyor is appointed to settle how it is done. GOV.UK sets out the notice periods and the process. A straight replacement in an existing opening does not normally involve the party wall. Our guide to widening an opening explains where the steelwork goes.
Is planning permission the same as Building Regulations approval?
No. Planning is about how a building looks and how it affects the area; the Building Regulations are about how the work is built, including energy efficiency, safety glass and structure. A replacement sliding door on a house in England usually needs no planning permission but is still a controlled fitting under the Building Regulations. Our building regulations guide explains that side.
How do I check whether my home needs consent?
- Confirm whether your home is a house, a flat or a maisonette, and whether it is listed.
- Ask your local council whether you are in a conservation area and whether an Article 4 direction applies.
- For a newer home, check the original planning permission for conditions removing permitted development rights.
- Read the Planning Portal guidance on doors and windows if you are in England.
- If you want written confirmation, ask the council about a lawful development certificate.
- For a flat, check your lease (or, in Scotland, your title deeds) and speak to the freeholder, factor or other owners before ordering.
Our surveyor will flag anything at survey that suggests consent may be needed, but planning responsibility sits with the property owner, so checking early avoids delays. When you are ready, see our sliding door replacement service.
Common questions
Do I need planning permission to replace French doors with sliding doors?
On a house in England, usually not. Replacing doors is normally permitted development if the new doors are similar in appearance to the existing ones, and a sliding door in the same opening at the back of a house rarely raises issues. Flats, listed buildings and homes covered by an Article 4 direction are different and may need consent.
Do I need planning permission for sliding doors in a conservation area?
Not automatically. Being in a conservation area does not on its own remove the right to replace doors on a house, but many conservation areas have an Article 4 direction that does, often for elevations facing a road. Ask your local council whether one applies to your street before you order, and get any consent in place first.
Can I fit sliding doors in a flat?
Possibly, but flats and maisonettes do not have householder permitted development rights, so changing an external door can need planning permission. You will usually need the freeholder's consent under your lease as well, and the Building Regulations still apply. Check with your council's planning department and your freeholder before ordering a made-to-measure door.
Do I need to tell my neighbour about new sliding doors?
For a straight replacement in an existing opening, usually not. If you are widening an opening and the new steel beam will bear on a party wall, the Party Wall etc. Act 1996 (England and Wales) requires you to give your neighbour notice before the work starts, in England and Wales. It is good practice to let neighbours know about building work anyway.
Sources and further reading
- Doors and windows: planning permission (Planning Portal)
- Planning permission: when you need it (GOV.UK)
- Permitted development rights for householders: technical guidance (GOV.UK)
- Planning permission: permitted development rights for householders (GOV.WALES)
- Planning circular 1/2024: householder permitted development rights (gov.scot)
- Planning permission: when to apply (nidirect)
- Party walls and building work (GOV.UK)
- Party Wall etc. Act 1996 (legislation.gov.uk)