An architectural draftsman (or other sub-contractor) engaged by a builder does not owe a duty of care to the proprietor for pure economic loss where the proprietor is a developer with the ability to protect itself contractually and has relevant knowledge of site conditions. Under the proportionate liability regime in Part IVAA of the Wrongs Act 1958, a settlement by a plaintiff with one concurrent wrongdoer for an amount exceeding that wrongdoer's proportionate share does not reduce the liability of the remaining concurrent wrongdoers; each wrongdoer's liability is independent. Regulation 15.2 of the Building Regulations 1994 informs but does not create a duty of care.
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