The purpose of the planning system is to contribute to the achievement of sustainable development. Sustainable development is about positive growth – making economic, environmental and social progress for this and future generations. Do I need planning permission? You might need planning permission if you want to: Build something new Make a major change to your building, such as build an extension Change the use of your building or land. Some house/building extensions and changes of use do not require a specific planning application. This is called permitted development. To find out more about planning permission and permitted development rights, please visit the following link. Planning Portal Interactive House and Common Projects Previous planning permission(s) for your property may have altered or removed your permitted development rights. If you are in any doubt as to whether the permitted development rights for your property are intact, please get in contact with us using our pre-application advice service. Pre-application advice and guidance notes (pdf 230 kb) It is a criminal offence to carry out works to a listed building or protected trees without first getting permission from the council, even if you did not know the building was listed or the trees were protected. Contact planning For planning queries please call Customer Services on 023 9244 6019 or email email@example.com. Appointments with a member of the Planning Team should be requested in advance of visiting the Plaza.