If you have permitted development rights, then there is no good to apply for planning permission when building on agricultural land.
Permitted development rights are part of the General Permitted Development Order 2015 (GPDO). They allow specific building works and developments to be completed without having to apply for full planning permission.
There are different types of permitted development rights, some of the key ones being Class A, Class B and Class Q.
Class A permitted development rights are only applicable for agricultural land of five hectares or more. These rights are granted for excavation or engineering projects, as well as for works that will erect, extend or alter a building.
Class B permitted development rights are for agricultural land of 0.4-5 hectares in area, and they are granted for:
- Extending or altering an agricultural building
- Replacing machinery, or installing additional machinery
- Provisioning, rearranging or replacing a sewer, main, pipe, cable or other infrastructural equipment
- Provisioning, rearranging or replacing a private way
- Provisioning a hard surface
- Depositing waste
- Specific operations relating to fish farming
Lastly, Class Q permitted development rights are applicable if you plan on changing your agricultural building to a house, meaning it would no longer have any agricultural purpose. It allows for up to five dwellings and for 865 square meters of floor space to be converted. Under Class Q, you must have been using the building for agriculture on 20th March 2013 and you cannot develop it beyond the existing dimensions externally.
Class Q is not applicable if your building is:
- A listed building
- Within conservation areas, like national parks
- Within an Area of Outstanding Natural Beauty
- A World Heritage Site
- A site of special scientific interest
You can learn more about agricultural permitted development rights on the Government website.