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Dormer Loft Conversion London

Have You Been Dreaming of a Dormer Loft Conversion in London? Learn About the Costs, Below

How Much Does a Dormer Loft Conversion in London Cost?

Dormer loft conversions are a gorgeous addition to any home, and are unsurprisingly one of the most popular types of loft conversion out there. But we know that the most important consideration for anybody thinking of a loft conversion is the cost. To help you with this, we’ve broken down the costs behind a typical dormer loft conversion:

Dormer loft conversion plans:


Planning permission applications (unusual for Dormers but not unheard of):

£200 (approximately)

Building regulations:

£500 (approximately)

Building costs for the Dormer conversion:

£7,500 (small), £15,000 (medium), £30,000 and upwards (large)

Fixtures and fittings:

Depends on your tastes! The upward limit is your budget and the quality of materials you desire.

Total for an average Dormer conversion:

£45,000 (average, taking into account all of the above factors).

It’s important to note that no two loft conversions are the same, and therefore their costs will vary from conversion to conversion. The above figures are to serve as a rough guide only. For a more exact figure, get in touch with a loft conversion firm like London Lofts Ltd. 

Whilst you can use individual third parties to take care of each different aspect of the conversion process, we’d recommend utilising a firm who carry out everything themselves, in house. This way, you’re guaranteed a smoother conversion process, and also cheaper prices too. When it comes to your Dormer conversion, the team here at London Lofts Ltd can take care of everything from start to finish. All you need to do is tell us what kind of space you’re after!

Is it Worth Adding a Dormer?

Yes! It’s worth adding a Dormer to your property in every sense. Firstly, adding a dormer to your property adds monetary value. Adding a Dormer conversion to your property can increase its overall value by as much as 20% in some cases. 

This, of course, depends on various factors, including the amount of usable space added, as well as your property’s location. Adding a Dormer to a London townhouse, for instance, is going to add significantly more value than it will elsewhere, because of the premium at which space comes in the capital when compared with other regions of the UK.

Top Architect For a Dormer Loft Conversion ready for you

Want a Dormer Loft Conversions in North London?

Do You Need Planning Permissions for a Dormer Loft Conversion (UK)?

Not usually. Typically, Dormer conversions fall within the bracket of permitted developments. That’s to say, alterations that can be made to a property without the need for additional planning permissions. Because Dormer conversions don’t drastically change a property’s structure, they’re seen as acceptable changes. 

There are certain instances wherein a Dormer conversion would require additional planning permissions. These include:

Why Choose London Lofts Ltd?

With more than a decade’s worth of loft conversion and extension experience, we provide a comprehensive package service, ensuring you receive the conversion of your dreams, whilst also providing a great customer experience as we do so. We prioritise communication throughout the entire process, and follow the mantra that no question is too much trouble, no matter how big or small.