what is permitted development

For small extensions and alterations, your proposals may fall within your Permitted Development Rights which means that planning permission will not be necessary.

There are a number of limits on height, volume (in cubic meters) etc. that your proposals need to be within for permitted development to apply.

If your project is eligible for permitted development we would recommend that you apply for a Certificate of Lawful Development to confirm this.

The application still needs to be supported by suitable drawings and calculations.