To qualify as permitted development some household building work projects – notably extending a house – must not exceed limits to the volume being added.
In England, the volume allowance mostly applies to loft conversions. You can read more on the Planning Portal.
Use the volume calculator to find out the volume of several loft conversion and extension types.
A soakaway does not normally require an application for planning permission provided it deals with surface water and does not discharge into a public sewer. Additional regulations may apply if you are in a conservation area or within the boundary of a listed building.
Building regulations will apply to the creation of a soakaway. The soakaway must comply with Part H of the building regulations which specifies where they can be located and the size that is permitted.
Read more about Approved Document H.
Bricking up an external door is classified as permitted development, meaning an application for planning permission is not required to complete the works. You will need to ensure that any materials used are of a similar appearance to the existing exterior of the house.
If you live in a listed building, then you will require planning permission and listed building consent for the change. In this instance it is best practice to talk to your local planning authority.
Find your local planning authority.
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:
Read more about the building regulations that apply to outbuildings.
Don't forget to check the permitted development rights for outbuildings.
Installing a new septic tank in your garden will often require both planning permission, building regulations approval and a septic tank permit.
The planning permission will ensure that the tank is installed in an appropriate location with information being provided to understand any potential implications for the surrounding environment and water.
Building regulations is required for the installation of a septic tank to ensure it meets the drainage and waste disposal standards set out in Approved Document H.
Where possible it is recommended that you connect to an existing public sewer instead of installing a septic tank, this reduces waste entering the waterways.
For more information visit our drains common project or contact your local planning authority.
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.