Where defective foundations give rise to a real (not fanciful) risk to the stability of a house, even if the risk cannot be quantified and is not probable, the plaintiff is entitled to damages assessed on the basis of demolition and reconstruction if that is the only way to eliminate the risk. Partial underpinning that would leave a residual risk of structural failure is a 'doubtful remedy' within Bellgrove v Eldridge. The threshold of compensable risk in negligence corresponds with the level of risk by which the duty of care was defined.
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