Over half of loft conversions do not require planning permission. If you are building a Velux or Dormer loft conversion in an area with no additional restrictions, you can usually build it as a permitted development.
What this means is that you do not have to apply for planning consent or have your plans approved before starting the build. However, it does put limitations on the size, type, and scope of your loft conversion project so if you prefer to build a Mansard loft conversion (for example) you will need to go via the planning route.
If you would like to build a permitted development, it's essential that you check the history of your house and whether there have already been any additions. If you or the previous owners added a garage, house extension, or conservatory onto the house you may not be able to build a loft conversion as well since the allowable permitted developments have already been added.
If your house has not already had any additions, you will need to ensure that:
If you've already had a permitted development built on your house or would like a larger loft conversion with some unusual features, you will need to gain planning permission to do so. It's essential that this is gained before any building work is carried out - while some people have been successful in gaining retrospective planning permission, failure can mean having to return your home to its original state so it's best to do this in advance.
Planning applications are submitted to your local authority, and there are slightly different conditions and requirements in every borough/area. Speak to us about your local requirements and we will put you in touch with your architectural partner who will help you through the process.