Loft Conversion Price Guide

If you’re thinking about doing a loft conversion, it’s worth finding out how much it’s going to cost before you begin. This will help you work out the scale of project that you can afford and when best to do it. We’ve made a loft conversion price guide to give you a rough indication of how long your project will take.

General advice

Research carefully

It’s essential to have an idea of how you want your project to turn out before you begin. Is there a particular style of loft conversion that you’d like? What would you like to use it for? Decide on these details early on so you don’t spend unnecessary time researching for things you don’t want.

Set a budget

Think carefully about what you can afford, come up with a budget and stick to it. This will help you get the most you can for the money you have available and avoid overspending.


Loft conversion prices vary depending on your property and the style of conversion you want. To get the most accurate estimate possible, ask multiple loft conversion companies to visit your property and give you quotes. But to get a rough idea, take a look at our loft conversion price guide:

Type of loft conversion Approx. cost per square metre
Dormer £900-£2,500
Hip to gable £1,200-£2,250
Mansard £1,250-£2,500

To get a fair price for your loft conversion, get lots of quotes and compare them. It should become obvious what an average price is. Stay away from unusually low or high quotes – they probably won’t provide you with the service you’re after. Remember that the size of your loft can make quite a big difference to the cost, so make sure you get this included in the quote.

This loft conversion price guide should give you a good indication of how much your project is likely to cost. To get in touch with loft conversion companies near you, complete our online form. We’ll put you in touch with up to 4 local professionals.