Dormer Loft Conversion

Dormer loft conversions are extremely popular in London as they rarely require planning permission and they provide slightly more headroom than a Velux loft conversion. While they do make small changes to the roof, these only include building and adding dormers which project out of the roof and hold the windows for your conversion.

Unlike Mansard and Hip to Gable, Dormers can be added to any house (including terraced homes and townhouses). There are also a number of different options to ensure that your Dormers fit in with the overall aesthetic of your home.

Types of Dormers

Dormers are the actual window attachments that are added to the roof for this type of loft conversion. The best way to choose a Dormer type is to look at the shape of the roof, the existing windows, and the architectural style to find a shape that fits in with the rest of the building and other buildings on your street. If a neighbour has had Gabled Dormers (for example), you may want to do the same to maintain a uniform look and feel for your street.

There are 5 main styles for Dormer windows:

  • Eyebrow Dormers – these protrusions have a semi-circle shape and no vertical lines. They are subtle, and only allow for small windows.
  • Gabled Dormers – these suit Tudor-style houses, and are quite popular with clients who live in traditional homes. The Dormers have pitched roofs with a completely vertical front.
  • Hipped Dormers – these look similar to Gabled Dormers, but the top section of the front panel angles backwards slightly, like a hipped roof.


  • Inset Dormers – these look much like Gabled Dormers, but the window is set lower down so it cuts into the roof itself. These provide the option of much larger windows, and often look more integrated into the house.
  • Shed Dormers – these are a popular choice for clients living in modern homes. The Dormer roof slants forwards so that water runs off, but is otherwise a box shape. These provide less headroom than Hipped or Gabled Dormers.

Choosing the Right Loft Conversion

Our experienced team and architectural partners will provide support and guidance throughout the planning process so that you can choose the right loft conversion for your home and your family. We have worked throughout Clapham, Wandsworth, Kensington, and Central London for over a decade so we have an excellent understanding of the areas’ architecture and planning requirements. If you have any questions or would like to discuss converting your loft, please just get in touch to arrange an appointment.

ANY QUESTIONS? CALL 020 3174 1241
Case Studies

Loft Conversions Add a Fifth to Property Values

Loft conversions are one of the best ways to make your home more spacious – an intelligently-designed conversion can add as much as 30% more living space to your home without extending the footprint of your house. As with all home improvements, conversions also increase the value and sale-ability of your home. A study by […]

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The client wanted to make extensive improvements to her home in Wandsworth, including a loft conversion, a kitchen extension, and alterations to her existing lounge and one of the existing bedrooms. All of the work took around 12 weeks and they were extremely happy with the results.  


Avian Construction Ltd

Peterden House
1A Leighton Rd
West Ealing
W13 9EL

020 3174 1241