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What are the costs for a house extension in Cambridge?

cambridgeAsked 2026-03-1924 views1 answers77 total votes

The cost of a house extension in Cambridge typically ranges from £1,200 to £2,000 per square metre in 2026, depending on the complexity of the design, materials used, and any ne...

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Helen CrossBuilding Specialist · 14 yrs
Accepted Answer2026-03-19

The cost of a house extension in Cambridge typically ranges from £1,200 to £2,000 per square metre in 2026, depending on the complexity of the design, materials used, and any necessary planning permissions. For an average 20 square metre extension, you might expect to pay between £24,000 and £40,000. It’s essential to hire contractors who are certified and insured; look for those registered with the Federation of Master Builders (FMB) or those who have local authority building control certifications. Additionally, if your extension involves any gas installations, ensure your builder is Gas Safe registered. A loft conversion can cost between £30,000 and £60,000, while a garage conversion typically ranges from £10,000 to £20,000. Always obtain several quotes from builders 'near me local building Cambridge' to ensure competitive pricing and reliable quality.

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