Do I need Planning Permission to add an extension to a Ground Floor flat?

To add an extension to your flat you must apply for planning permission.

If your flat is a listed building it is likely you will need listed building consent and you should contact your local planning authority for advice before you start work.

Works to a listed building that affect its special historic character without consent is a criminal offence.

If your flat is in a conservation area and your proposals involve an element of demolition then you may need to apply for planning permission for relevant demolition in a conservation area and you should contact your local planning authority for advice.