The short answer
You usually do not need planning permission to replace or refit a kitchen inside your home — internal works are normally permitted. Planning permission is more likely if you are building an extension to enlarge the kitchen, altering the external appearance, or your home is listed or in a conservation area. Even where planning permission is not needed, the work must still meet Building Regulations — for electrics, gas, ventilation and any structural change. Always check with your local planning authority if in doubt.
Planning permission and Building Regulations are two different things, and people often confuse them. Most kitchen refits need neither planning permission nor a planning application — but they almost always involve notifiable Building Regulations work. This guide explains when planning permission is and is not needed for a kitchen project.
Planning at a glance
- Internal refit usually no permission
- Extension may need permission
- Listed building likely consent needed
- Conservation area extra rules
- Building Regs still apply
- If unsure ask your council
When you do NOT need planning permission
Replacing units, worktops and appliances, re-plumbing within the room, rewiring, and changing the layout inside the existing footprint are normally permitted development and do not need planning permission. The same applies to most internal alterations that do not change the external appearance of the house. This covers the great majority of kitchen refits. What you cannot skip is Building Regulations compliance for the electrical, gas, ventilation and any structural elements.
| Project | Planning permission? | Notes |
|---|---|---|
| Like-for-like refit | Usually no | Building Regs still apply |
| New layout, same room | Usually no | Internal work |
| Knocking through internally | Usually no | But Building Regs for structure |
| Kitchen extension | Often yes / permitted development limits | Check size and rules |
| Listed building works | Listed building consent likely | Even internal changes |
When you MIGHT need planning permission
You are more likely to need planning permission if you are extending the house to create a bigger kitchen, building a rear or side extension, adding rooflights or windows that change the external look, or working on a flat (which has different rules). Some extensions fall under permitted development within size limits, but it is wise to confirm with your local planning authority or apply for a lawful development certificate for certainty. See open-plan considerations if you are knocking through.
Planning permission vs Building Regulations
Planning permission is about whether you can make a change to a building or its use; Building Regulations are about whether the work is built safely. A kitchen refit usually needs no planning permission but does need Building Regulations compliance — for example, new electrical circuits are notifiable under Part P, gas work must be done by a Gas Safe registered engineer, and ventilation must meet the standards. See our Building Regulations guide for the detail.
How to check for your project
If your project is a straightforward internal refit, you almost certainly do not need planning permission. If it involves an extension, external changes, a flat, or a listed or conservation-area property, contact your local planning authority before committing — the GOV.UK Planning Portal is a good starting point. This is general information, not a planning decision for your property; planning rules vary by location and property type, so always confirm with your council.
Compare kitchen quotes
A good fitter or designer will flag any planning or regulations issues early. Compare quotes from kitchen design and fitting specialists.
Frequently asked questions
Do I need planning permission to replace my kitchen?
No, replacing or refitting a kitchen inside your home is normally permitted and does not need planning permission. The work must still comply with Building Regulations — for electrics, gas, ventilation and any structural change.
Do I need planning permission to knock through for an open-plan kitchen?
Internal knocking through does not usually need planning permission, but removing a load-bearing wall is notifiable building work that must comply with Building Regulations. Listed buildings and some flats have extra rules, so check with your council.
Do I need planning permission for a kitchen extension?
Possibly. Some extensions fall under permitted development within size limits, but many need planning permission. Confirm with your local planning authority or apply for a lawful development certificate for certainty before you start.
What about a listed building?
If your home is listed, even internal changes such as removing a wall or altering original features can require listed building consent. Always check with your local authority before starting work on a protected property.
Sources & further reading
- GOV.UK / Planning Portal — permitted development and planning permission for homes
- GOV.UK / Building Regulations — electrical, gas, ventilation and structural requirements
- Historic England — listed building consent guidance
- TrustMark — finding and checking registered tradespeople
This is general information, not a planning decision for your property. Planning rules vary by location and property type — always confirm with your local planning authority.