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What are the costs for a house extension near me local building Hammersmith?

hammersmithAsked 2026-03-1924 views1 answers136 total votes

In Hammersmith, the cost of a house extension can vary significantly based on the size and complexity of the project. On average, you can expect to pay around £1,200 to £2,500 p...

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Helen CrossBuilding Specialist · 7 yrs
Accepted Answer2026-03-19

In Hammersmith, the cost of a house extension can vary significantly based on the size and complexity of the project. On average, you can expect to pay around £1,200 to £2,500 per square metre for a standard single-storey extension. For a typical 20 square metre extension, this would amount to approximately £24,000 to £50,000. If you’re considering a more complex multi-storey extension, costs can rise to £3,000 per square metre or more. It's important to hire professionals who are certified and experienced; look for builders registered with the Federation of Master Builders (FMB) or Building Regulations Approved Inspectors to ensure compliance with local standards. Additionally, having the right planning permissions is crucial, especially in areas with strict regulations like Hammersmith. Be sure to consult with local experts who understand the specific requirements of the borough for the best results.

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