Tag Archives: 2.5m excavation rule

Only £4,000 Extra to Protect Against a Full-Grown Tree When Building a Studio-Size Extension — Because You Will Never Go Deeper Than 2.5m

Q: How much extra will my foundation cost if I have a full-grown tree near my new studio-size extension? A: Only £4,000 anywhere in the UK. And you will never dig deeper than 2.5m. This question comes up in almost every enquiry for a 40m² studio-size extension. Homeowners are often told foundation costs will “double” […]

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