HOW MUCH DOES A LOFT CONVERSION COST?

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A loft conversion can offer you excellent value for money, allowing you to make active use of the space you have up in your eaves which often never reaches its full potential. With the current property market the way it is, homeowners are finding it much more difficult to move as prices increase exponentially and the cost of living soars. For the average family, few things can be as stressful as going through a house move – and finding the money to finance the move in the first place.

This is one of the reasons why loft conversions have become so popular; it is a way of improving your living space without having to move. A well-built loft conversion can also increase the value of your property, so if you decide to move on in future, you will be glad you made the investment. Of course, you will also need to factor in the costs of the building work, which is why we have put together this article to help you better understand the average price of a loft conversion.

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If you would like to talk to us about the cost of a loft conversion please call us on 020 3633 7955, email or fill in our contact form. We will be happy to assist and can book in your free quote if required.




THE AVERAGE PRICE
OF A LOFT CONVERSION

These are the average costs that you can expect to pay for the most common types of loft conversion:

DORMER
LOFT CONVERSION COST

Summary: Dormer loft conversions are the most popular type in the UK. They have a box-like construction, jutting out from the existing roof and generally being clad in tiles to make them blend in. The room that is created inside will have straight, vertical walls and a flat, raised ceiling. With their shape and size, there is lots of room for windows to be added in, so a dormer loft conversion will feel bright and inviting.

Cost: For an average rear-box dormer, you can expect to pay around £40,000-£50,000.

L-SHAPED DORMER LOFT CONVERSION COST

Summary: L-shaped dormers are very similar to standard dormers, but they have the potential to give you significantly more space. The prerequisite is that you will need to have the right property shape in the first place, usually with an extension built onto the back to create that L shape. With this style of dormer there is the opportunity to create multiple new rooms underneath your roof.

Cost: An average L-shaped dormer loft conversion will cost in the region of £75,000.

L-SHAPED DORMER LOFT CONVERSION COST

Summary: L-shaped dormers are very similar to standard dormers, but they have the potential to give you significantly more space. The prerequisite is that you will need to have the right property shape in the first place, usually with an extension built onto the back to create that L shape. With this style of dormer there is the opportunity to create multiple new rooms underneath your roof.

Cost: An average L-shaped dormer loft conversion will cost in the region of £75,000.

MANSARD
LOFT CONVERSION COST

Summary: A mansard loft conversion is usually built by raising the party wall, giving you a loft conversion that feels more like a standard room due to the height of the ceiling. It can offer you an excellent use of space in terraced and end-of-terrace properties. You will almost always need to obtain planning permission before a mansard loft conversion is built, as significant structural alterations will need to be made.

Cost: For an average mansard loft conversion, you will be looking at costs of around £70,000 and upwards.

HIP TO GABLE
LOFT CONVERSION COST

Summary: A hip to gable conversion works on similar principles to a dormer conversion, but it is generally used for an end-of-terrace property (or perhaps a bungalow or chalet). It is a sympathetic way to convert your loft space as it will blend in very well with the existing building and structure. The sloping roof is replaced with walls to give good headroom, allowing you to use the space in a variety of ways.

Cost: When complete, a hip to gable loft conversion will generally cost around £55,000-£60,000.

HIP TO GABLE
LOFT CONVERSION COST

Summary: A hip to gable conversion works on similar principles to a dormer conversion, but it is generally used for an end-of-terrace property (or perhaps a bungalow or chalet). It is a sympathetic way to convert your loft space as it will blend in very well with the existing building and structure. The sloping roof is replaced with walls to give good headroom, allowing you to use the space in a variety of ways.

Cost: When complete, a hip to gable loft conversion will generally cost around £55,000-£60,000.

VELUX
LOFT CONVERSION COST

Summary: The most cost-effective way to convert your loft, a Velux conversion will simply make use of the space you already have. There will be no extensions, minimising the building work required, which means your conversion will come in at a lower price point. One of the main benefits is the use of large Velux windows in the ceiling, making sure that the space is well lit and well ventilated.

Cost: As a lower-cost type of loft conversion you can expect to pay around £30,000-£35,000.

GET A FREE QUOTE – THE MOST ACCURATE WAY TO UNDERSTAND HOW MUCH A LOFT CONVERSION COSTS

We cannot stress enough that the figures quoted in this blog post are only averages.  

There are so many factors that might affect the cost of your loft conversion, including:

  • The age of your property and whether this could cause complications
  • The condition of your property – rotting eaves, weakened walls etc.
  • How much of your permitted development rights you have already used
  • Whether your property is listed and will require compliance with specialist regulations
  • The type of conversion – e.g. mansard conversions cost significantly more
  • Whether you need to secure planning permission beforehand
  • The aesthetics of your property and making your conversion blend in
  • The number of rooms you want to have inside the new conversion
  • The type of rooms you want (e.g. bathroom suites can cost more to fit)

Get your quote – it’s completely free of charge and you have no obligation to go ahead, so you have absolutely nothing to lose. We will visit your property, carry out a survey and make sure we understand what you want to get out of your new loft conversion. We always prefer to come and give a quote in person, so you have all the details you need to make an informed decision. We will provide fully itemised costs so that you will know the exact and final price.