What Are The Average Loft Conversion Prices in The UK?

A loft conversion is a great addition to any home! We all could use a little more space in our homes, and there’s no better solution for that than a loft conversion. However, they can also be fairly expensive for some people, so if you’re considering a loft conversion but don’t know if you can afford it then we have you covered.

Contributing Factors

The cost of a loft conversion is dependent on a few different factors, so in general terms this means that there’s no standard pricing and each loft will likely cost different amounts. Some factors that will play a role in determining the expenses are:

  • Size of the loft
  • Type of loft
  • The structure of your roof
  • Available space
  • Whether any alterations need to be made (for example to include a staircase)
  • Where you live in the country

Average Pricing

And while the above factors can owe to very different pricing, it’s still possible to discuss average loft conversion prices using ballpark numbers. So while the exact amount you will pay can’t be determined, you should be prepared to pay somewhere between £15,000 and £50,000. For your benefit it would also be helpful to discuss these prices as they relate to specific loft conversions.

  • The simplest loft conversion is a Room-in-Roof conversion. These require floor reinforcement, skylights, electricity, heating and insulation, lighting, and fire safety measures. On average they cost £15,000, or more specifically would cost somewhere between £1,150 and £1,350 per square metre.
  • Perhaps the Room-in-Roof fails to meet your needs and you require something more spacious. For those of you who are instead interested in the Dormer you should keep in mind that you’ll have to pay at least £20,000 for the provisions of a basic conversion. If you want a finish akin to a master suite then you’ll have to pay upwards of £35,000. Per square metre, this would be £1,250-£1,450.
  • In the case of a Mansard loft conversion, you should be prepared to pay anywhere between, £35,000 to £45,000; this would be based on £1,500-£2,500 per square metre. For Hip to Gable lofts, you should expect a general range of £25,000-£30,000. This is on the basis of £1,500-£2,500 per square metre.
  • Another option to consider is ready-made loft conversions. These are constructed off-site and are carefully placed onto your property. These tend to be faster and also serve to cut down on labour costs. If you’re considering a ready-made loft conversion you should be prepared to pay an amount somewhere near £55,000.
  • Lastly, there are loft conversions that require changes to your house’s roof structure. You can expect these to be the most expensive out of other options because constructing and replacing the roof requires highly specialised labour; both in terms of contractors and designers. If you decide to get a loft conversion which requires changes to your roof, then you need to keep in mind that this will cost you upwards of £40,000. This would be £1,350-£1,550 per square metre.