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What are the costs for a house extension in Chorley?

chorleyAsked 2026-03-1920 views1 answers95 total votes

The cost of a house extension in Chorley can vary significantly based on size, design, and materials used. On average, homeowners can expect to pay between £1,200 and £2,000 per...

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Helen CrossBuilding Specialist · 8 yrs
Accepted Answer2026-03-19

The cost of a house extension in Chorley can vary significantly based on size, design, and materials used. On average, homeowners can expect to pay between £1,200 and £2,000 per square meter for a standard single-storey extension in 2026. For larger extensions, such as double-storey builds, prices can rise to £1,500 to £2,500 per square meter. Additionally, it's essential to factor in costs for planning permission, which can range from £200 to £500, depending on the complexity of your project.

When undertaking a building project, ensure that your contractor is certified and registered with relevant bodies like NICEIC for electrical work or Gas Safe for any gas installations. These certifications guarantee that the work meets UK safety standards.

For a project like a loft conversion, you might be looking at costs of around £35,000 to £50,000, depending on the level of conversion and any structural changes needed.

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