AdviceConversionsCost guidesLofts

How much does a new loft conversion cost?

The prices in this guide are accurate as of 2024*

Illustration of a row of houses with the costs to get different loft conversions built according to property type
Average cost of loft conversion by conversion type

Loft conversions are a great way of maximising the available space in your home. This means that if you can’t or don’t want to move home at the moment, but need the extra space, you can still upgrade your home with a loft conversion.

Loft conversions also increase the value of your home (sometimes by up to 20%), and often don’t require planning permission applications, because they tend to be covered by Permitted Development Rights (PDRs). You can check planning permission regulations for loft conversions here.

How much you end up spending on your new loft will depend on the type of conversion you’re interested in getting. The most common loft conversions, and their average costs are:

Type of loft conversionCost range
Velux£40,000 to £75,000
Dormer£55,500 to £118,400
Mansard£70,000 to £150,000
Hip to gable £60,350 to £134,000
Bungalow£40,000 to £100,000
Average cost of a loft conversion, according to loft conversion type

Bungalow loft conversions can be built using any of the above styles. 

Loft conversions can be used for all sorts of things, from an additional bedroom to a home office, or even a gym. What you do with your extra space is entirely up to you, giving you a huge amount of creative licence. 

Picture of a loft converted into a bathroom with a large window and wooden floors

Keep in mind that the prices in this guide include cost of labour and cost of materials. The prices include VAT.

Expect to pay more if you live in London and the South East, where cost of labour can rise by up to 20% on average. The size of your loft, and additional costs like underfloor heating, can also bring up the overall price.

This guide covers prices for all the different types of loft conversions, as well as what other additional costs might look like:

Conclusions 

Loft conversions are a great way to make the most of the unused space in your home, and often for a lot less money than an extension.

Be patient, take your time, and make sure everything is in place for a professional, top-quality conversion. The best way to do this is by doing your research, so that you can make sure you know what to expect when it comes to planning, and paying, for your loft conversion.

Keep in mind that the size of your loft, and where you live in the UK, are the biggest factors impacting on costs. Additional insulation and underfloor heating will also raise prices.

And always hire skilled professionals. Find a loft conversion specialist today.

FIND A LOFT CONVERSION SPECIALIST

*The Rated People cost guides are produced in collaboration with the quote-building platform PriceBuilder, and a range of tradespeople across the 30+ trades on our platform were consulted. Please note that the prices included are for guidance only – how much you end up spending will depend on the specific requirements of your project.

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