What are the costs for a house extension in Burnley?

In Burnley, the cost of a house extension typically ranges between £1,200–£2,000 per square metre in 2026. Factors influencing the price include the design complexity, the type of materials used, and whether planning permission is required. For instance, a standard single-storey extension of about 20 square metres may cost around £24,000–£40,000.

It's crucial to hire certified professionals for your project. Look for builders registered with the Federation of Master Builders (FMB) or those who have relevant NICEIC certifications, especially for electrical work involved in extensions. Additionally, ensure your builder is knowledgeable about local building regulations in Burnley to avoid any compliance issues.

If you're considering a loft conversion or garage conversion, similar cost brackets apply but vary depending on the specifics of the project. A loft conversion could range from £30,000 to £50,000, while a garage conversion might start around £8,000.

Looking for professionals in your area? Find vetted providers on TradeMatch.