How Much Does A Ground Floor Extension Cost

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How Much Does A Ground Floor Extension Cost. Zopa surveyed 1000 home-improvers and found that an average extension cost was 19750. Cost of house extensions you can expect to pay between 2000 to 4000 per metre squared so an 80 square metre ground floor extension will cost between 164500 to 310000.

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The best way to deal with bespoke features which are going to increase this cost is to add these as an additional cost on. Speaking to our experts we have established that the basic price of building an extension is 1100 to 1400 per square metre. You can expect to pay between 2000 to 4000 per metre squared so an 80 square metre ground floor extension will cost between 164500 to 310000.

Speaking to our experts we have established that the basic price of building an extension is 1100 to 1400 per square metre.

Higher specification finishes can increase costs up to 3000 per m². The average return on investment for an extension was 71 and the average amount of profit generated by an extension was 14000. Adding new floor space for a basic 10x15-foot bedroom runs around 3750-7500 for an entirely do-it-yourself project or 7500-22500 or more to hire a contractor. Single-story extensions can cost anywhere between 1350 per m 2 and 2100 per m 2.