A dormer extension is one that protrudes vertically from the side of a sloping roof, adding extra floor and headspace within the home. Dormer conversions are among the most popular type of loft conversions because they are suitable for both the back and or the front of the home and can be added to pretty much any sloped roof.
A dormer conversion is a great way to maximize space: 90° walls and a horizontal ceiling which improves functionality and usability. And due to its flexibility, it’s well suited to a huge range of properties including detached, semi-detached and terraced homes.
Dormer conversions come in a range of styles, depending on your needs and the size and layout of your home. They can be constructed as a full width conversion, a single dormer, an L-shaped dormer or a side dormer.
Mansard Roof Loft Conversion
The mansard conversion requires removing a good portion of the original roof and building walls on top of the existing roof edge at a pitch of around 70° (as opposed to the 90° walls of the dormer conversion). A nearly flat roof is then constructed over the extension, creating sufficient volume within the roof for an extra storey.
The Mansard roof loft conversion is often more aesthetically appealing than the dormer style, however, because of the amount of work involved, it is generally the most costly option and will involve planning permission.
What will My Loft Conversion Cost?
As we say, how long is a piece of string? Unfortunately, there’s no one-size-fits-all price, but loft conversions can be achieved for as little as £1700/sqm. However, the cost of your loft conversion will be dictated by the extent of the works involved, your taste and the size of your budget, so an indicative price range is somewhere from £1700 to £2000/sqm.