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

The cost of a house extension in Chelmsford typically ranges from £1,200 to £2,000 per square meter in 2026. This means that a standard 20 square meter extension could set you back around £24,000 to £40,000. Factors influencing the price include the complexity of the design, materials used, and whether you need planning permission, which may add additional costs.

It's important to hire certified builders for your project. Look for professionals registered with FMB (Federation of Master Builders) or those who carry a Building Regulation Approval badge. These certifications ensure that the work meets local safety and quality standards.

In addition to house extensions, many local builders in Chelmsford also offer loft and garage conversions, which can be a cost-effective way to increase your living space. Loft conversions generally cost between £20,000 and £50,000 depending on the size and design.

For the best results, consult with local building experts to get detailed quotes tailored to your specific needs.

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