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What are the costs for a house extension in Lancaster?

lancasterAsked 2026-03-1920 views1 answers149 total votes

The cost of a house extension in Lancaster typically ranges from £1,200 to £2,500 per square metre as of 2026. This means that a standard single-storey extension of around 20 sq...

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

The cost of a house extension in Lancaster typically ranges from £1,200 to £2,500 per square metre as of 2026. This means that a standard single-storey extension of around 20 square metres could cost between £24,000 and £50,000. Factors that influence the price include the complexity of the design, the materials used, and whether any planning permission is required.

It's crucial to hire builders who are certified and experienced. Look for professionals who are registered with relevant bodies such as the NICEIC for electrical work and FENSA for window installations. This ensures that the work meets safety standards and regulations.

In Lancaster, many local builders are familiar with the area's planning regulations, which can further streamline your extension project. Additionally, consider requesting quotes from multiple local providers to find a solution that fits your budget.

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