What is the average price guide for building projects in Wrexham?

When considering building projects in Wrexham, it's important to have a clear average price guide. In 2026, a house extension typically costs between £1,200 and £2,000 per square metre. For a standard 20m² extension, you might expect to pay £24,000 to £40,000. A loft conversion is generally more affordable per square metre, with prices ranging from £1,500 to £2,500; a full conversion could cost around £30,000 to £50,000 depending on design and complexity.

Garage conversions can also be an economical option, averaging around £15,000 to £25,000 for a basic conversion, increasing if additional features are added. Each of these projects may require professional assistance, so ensure you hire contractors who are NICEIC certified for electrical work and Gas Safe registered if gas appliances are involved.

Given Wrexham's unique architectural style, ensure your building plans align with local regulations.

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