Loft conversions can be an easy way to get more space in a home with a growing family. 

Whether using the space as smart storage, an extra bedroom, an office or even a cinema and games room. 

Converting a loft into a living space can be a saving grace for many who feel as if their homes are shrinking. 

However, like most builds or major renovation projects, you might be wondering about the paperwork that comes along with it, including planning permission. 

Do you need planning permission for a loft conversion?

Luckily for most, you do not need planning permission for a loft conversion however there are some rules and regulations you need to follow to avoid needing permission. 

If you want to avoid needing planning permission, you will need to keep to the following standards.

St Helens Star: This is what you need to know.This is what you need to know. (Image: Getty)

  • Materials need to be similar to the appearance of the existing home
  • The extension can not reach beyond the outermost part of the existing roof at the front of the home. 
  • The extension can not reach beyond 40 cubic meters for terrace homes or 50 cubic meters for detached/semi-detached homes.
  • Extensions can not go higher than the highest point of a roof
  • You can have no verandas, balconies or raised areas.
  • Side-facing windows need to be obscure glazed and 1.7m or more above the floor
  • Your home is not on designated land, such as national parks or Areas of Outstanding National Beauty, the Broads, conservation areas and World Heritage sites.
  • The roof enlargement does not overhang the outer face of the wall of the original build
  • The roof extensions need to be set back at least 20cm from the original eaves.

You can also discuss the matter with an architect or builder if you want to avoid needing planning permission.


Can you build in a garden without planning permission?

What is the Party Wall Notice?

It is also important to note the Party Wall Agreement when doing a loft conversion.

The Party Wall Agreement is between you and your neighbour which means that the work is done fairly and doesn't harm your neighbour's property. 

A Party Wall Notice will need to be handed over to your neighbour, breaking down your plans, which your neighbour needs to sign.