Your feedback matters
Want to learn everything about Webflow? Download our free eBook today.
.svg){kind=small}
Can I build a two-storey extension without planning permission?
Two storey rear extensions are considered to be permitted development, meaning they do not require an application for planning permission provided certain limits and conditions are met. If these limits are exceeded then you will need to apply for planning permission from the local planning authority.
Houses on designated land such as national parks or conservation areas are excluded from the permitted development rights and will require an application for planning permission.
To fall within permitted development rights, the extension should be no higher than the existing house, and where it is within two metres of a boundary, the eaves should be no higher than three metres.
Any double storey extension to the side or front of the house will require planning permission. You can view the full limits and conditions on our Two-storey extension Mini Guide.
If you live in a listed building you will require listed building consent for any major works to the property.
Common Questions
If you plan to put up a small, detached building like a garden shed, garden room, garden office, annexe or summerhouse (all classed as outbuildings), building regulations generally won’t apply if the building has a floor area under 15 square metres and does not include any sleeping accommodation.
For buildings with a floor area between 15 and 30 square metres, building regulations approval is usually not needed - as long as the building does not include sleeping accommodation and either:
- it is at least one metre away from any boundary, or
- it is built mainly from non-combustible materials.
Read more about the building regulations that apply to outbuildings.
Don't forget to check the permitted development rights for outbuildings.
A council’s planning department, known as the local planning authority (LPA), is the local government body responsible for managing and overseeing the planning system in a specific area.
You can use the search tool on Planning Portal to find the contact details for any local planning authority in England and Wales.
Running a taxi business from home will require planning permission as it constitutes a change of use of the property. The business may cause increased traffic or visitors, staff being in the property and external advertising, all of which would have an impact on the surrounding area.
You should contact your local planning authority or the Planning Guidance Service for more advice.
Adding a personal or commercial glamping pod will often require planning permission due to the size and permanence of the structure.
For personal use, whether you require planning permission depends on the size of the structure. If it’s placed in your garden, then it may be classed as an outbuilding and fall under permitted development rights. This only applies if it is not treated as a new living space which many glamping pods will be. Full details on outbuildings are available on our common project pages.
For commercial use, planning permission will be needed for the addition, where relevant this will also cover the change of use. An application should include any utilities connections or access roads that will be added alongside the pod.
Due to the complex nature of installing a glamping pod, we’d recommend talking to your local planning authority or our Planning Guidance Service.
In most cases neither planning permission nor building control approval are required for replacing grass with artificial grass. If you live in a protected areas such as a conservation area, or listed building, it is best practice to contact your local planning authority to check whether any consents are required.
Find your local planning authority.
