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What is the average price guide for building in Harrow?

United KingdomAsked 2026-04-1833 views1 answers83 total votes

What is the average price guide for building in Harrow?

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Helen CrossBuilding Specialist · 8 yrs
2026-03-19

In Harrow, the average cost for building services varies depending on the project type. For a house extension, expect to pay around £1,500 to £2,500 per square metre, which translates to a total of about £25,000 to £50,000 for a typical size extension. If you're considering a loft conversion, the average price can range from £20,000 to £45,000, depending on the complexity and design. On the other hand, a garage conversion can cost between £8,000 to £15,000, making it a cost-effective option for adding living space.

It's essential to hire certified professionals for these projects. Look for builders registered with the Federation of Master Builders (FMB) or those who hold relevant certifications like NICEIC for electrical work. These credentials ensure that your project meets safety and quality standards.

For homeowners in Harrow, understanding these costs can help in budgeting effectively for your building projects.

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