• Get more space – whether you want a new office, bedroom or simply a gym, a loft conversion will give you extra space
  • Increase the value of your property – an extra room to your home will increase its value by almost 20%.
  • Avoid moving homes – your family may be growing and you need that extra space to avoid having to move homes
  • Add rental opportunity –  you can create a perfect ensuite bedroom and rent out.


Rear dormer loft conversion

This is one of the most popular types of loft conversion as it usually does not require planning permission. The roof is expanded outwards, creating more space for a new room.

Mansard loft conversion

For this type of loft conversion, the roof will be rebuilt and usually, it requires planning permission before work can begin as it will consist of some structural changes.

Hip to gable loft conversion

Similar to rear dormer loft conversion, this type of conversion is best for end-of-terrace home. We would remove the hips (the end walls) and replace them with gable walls, this creates considerable new headroom. Normally it does not require planning permission.

L-shaped dormer conversion

If you are looking for more space then this may be the right conversion if you live in an L-shaped property (usually a Victorian or corner house).

Velux loft conversion

This type of conversion does not need planning permission and adds plenty of light and ventilation to make your loft a more inviting space.


Often a loft conversion job can be done without consent, and usually it is clear in advance what is likely to be acceptable or not. Things will only get tricky if you need the height of the roofline.

It is important to remember that Planning and Building Regulations are two totally separate things. However, both departments are run the local council normally.


Most loft conversions are carried out as ‘permitted development’, you do not need planning consent as long as you meet some basic rules on maximum height and size. Usually, if you enlarge the volume of the existing house by less than 50m cubed (40m cubed for terraced properties),  the loft conversion should be exempt from planning.

Building Regulations

Regardless of the planning situation, Building Regulations consent will be required for loft conversions. Often clients ask us if they can get around the system by describing the proposed loft accommodation as ‘hobby rooms’ or libraries but usually Building Regulations consent is still required.