The UK housing market has experienced numerous changes over the years, but the desire for homeowners to maximize the space in their homes remains a consistent trend. One popular solution to this challenge is the loft conversion. But the question on most homeowners’ minds is: how much is a loft conversion in the UK? The answer to that is multifaceted.

Factors Influencing Loft Conversion Costs

Several variables can affect the overall cost of a loft conversion in the UK. The primary ones include the type of conversion, size and scale of the project, location, and the choice of materials.

  • Type of Conversion: There are various loft conversions, including Velux, dormer, hip-to-gable, and mansard. A Velux conversion, which involves simply adding windows to the existing roof structure, is usually the cheapest. Dormer conversions include extending the roof and are a bit more expensive. Hip-to-gable and mansard conversions are more complex and, thus, tend to be on the pricier side.
  • Size and Scale: The larger and more complicated the project, the higher the cost. If your loft conversion involves adding a bathroom or even an en-suite, it will add to the expenses.
  • Location: The region you’re in can significantly influence the price. For example, loft conversions in London are generally more expensive than in other parts of the UK.
  • Materials and Finishes: Opting for high-end finishes and materials will invariably increase costs.

The Average Loft Conversion Cost

To provide a ballpark figure, a basic Velux loft conversion can start from as low as £20,000. On the other hand, a more comprehensive dormer conversion could set you back between £30,000 and £50,000, depending on the specifications. More elaborate hip-to-gable or mansard conversions can cost upwards of £40,000 to £60,000. Always remember these are average figures, and the precise amount could vary.

For those wondering precisely how much is a loft conversion about enhancing property value, the answer is heartening. A well-executed loft conversion can increase your home’s value by up to 20%, making it a worthwhile investment for many homeowners.

Save With The Right Contractor

One way to ensure you get value for your money is by choosing the right contractor. A trusted and experienced contractor can not only provide accurate estimates but also guide you on where to save and where to splurge. 

One such trusted contractor is, known for their dedication to quality and attention to detail.


In conclusion, when considering how much is a loft conversion, various factors come into play. While the initial cost can seem significant, the long-term benefits of added space and property value can make it a prudent investment. Always ensure you have a clear budget, understand the influencing factors, and select a reputable contractor like to guide you through the process.