Do I need planning permission?
Certain forms of development can be carried out without the need to make an application. This is called permitted development.
This does not affect the need for building regulations approval.
You are advised to check permitted development rights with the Council's Planning Services as some properties may have permitted development rights removed or restricted, in these circumstances planning permission will be required before you can carry out the work.
Definition of "original house"
The term "original house" as mentioned in the guidance on permitted development means the house as it was first built or as it stood on 1 July 1948 (if it was built before that date).
Find out if you need planning permission or building regulations for building work and get advice about household projects
You can find a list of projects, case studies and mini-guides on the Planning Portal website. You can also use their 'interactive house' feature which gives advice about common building projects.
The need for planning permission is not necessarily a straightforward matter due to the complexity of the permitted development legislation. If you wish the Council to advise you as to whether planning permission is required for a proposed development you will need to apply for a Lawful Development Certificate for a Proposed use or development. There is a fee for this service.