The Problem A detached garage to a property near Graves End was suffering significant seasonal foundation movement from clay shrinkage subsidence. Despite 5 years of trying, the neighbour had refused to remove their tree and the local authority confirmed it’s statutory protection as the houses were within a conservation area. Insurers were faced with demolishing the garage and extension to the rear and reconstructing on a piled footing. Monitoring showed foundation movements in the order of 20mm. Cracks in the building along the left hand flank wall had been previously repaired but continued to open and at our visit, we identified that the flank elevations were not tied into the roof and the mid span buttress had been retrospectively built and was not tied to the flank wall. Consequentl

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