A guide to dormer loft conversions

Loft conversions are a great way to create more space in your home, whether you need an extra bedroom, a study or even a new bathroom. There are several different types of conversion, with a dormer design one of your options.

Here is a brief guide to dormer loft conversions and what you’ll need to consider if you decide to make this kind of alteration to your property.

What is a dormer conversion?

A dormer conversion will stick out from the slope of your roof, with the aim to provide additional headroom in your loft space. These do not need to span the entire length of your roof and can simply be the width of a single window if you choose. It is possible to build dormer conversions with flat roofs – which give the maximum headroom – but those with sloped roofs tend to look more attractive from the outside.

If you decide to go for a larger dormer conversion, be aware there are limits to the volume of space you can add to your loft. For terraced houses, you can’t create more than 40 cubic m of additional room, while this is 50 cubic m for detached and semi-detached properties.

dormer conversion

Will I need planning permission?

Because a dormer conversion will alter the outward appearance of your home, you will usually need planning permission to take on this kind of project. In some areas, you may find dormer conversions are not allowed, or are restricted to the rear of the property, so as not to change the overall look of the street. In other locations, dormer conversions are only allowed at the front of the house, to prevent the new windows overlooking neighbours’ gardens.

You’ll need to speak to your local planning department to find out whether there are any rules or restrictions you need to be aware of before you start work. Continue reading “A guide to dormer loft conversions”