Claims against architects

If you have suffered loss because an architect’s design, advice or project administration fell below an acceptable standard, you may be able to bring a professional negligence claim against an architect (or their practice) to recover compensation. Architectural errors can have wide-ranging consequences, particularly where they lead to defective construction, delay, cost overruns, disputes with contractors, or a development that cannot be built (or used) as intended.

What constitutes professional negligence by an architect?

Architects are expected to exercise reasonable skill and care when providing professional services such as design, feasibility input, planning support, specification, procurement advice, contract administration, inspections, and certification. A claim typically arises where the architect’s work falls below the standard of a reasonably competent architect undertaking the same role in similar circumstances, and that failing causes a measurable loss.

The scope of an architect’s duty will depend on the retainer and what the architect was appointed to do. Some appointments are limited to design-only services. Others extend to full project services, including tendering, administering the building contract, issuing instructions, responding to RFIs, site inspections, and certifying payments or practical completion. Many disputes turn not only on whether something went wrong, but on whether the risk should have been identified and communicated earlier, whether appropriate steps were taken to manage design change, and whether adequate records were kept to protect the client’s position.

Common examples of architect negligence

Claims against architects can arise in both residential and commercial projects, including new-build developments, refurbishments, fit-outs and heritage works. Common examples include:

• Design defects, such as inadequate detailing, non-compliant design, poor coordination across disciplines, or designs that are not buildable within the intended programme or budget
• Failures relating to building regulations and compliance, including designs that do not meet applicable requirements or do not properly address fire safety, accessibility, insulation, ventilation, or structural considerations within the architect’s scope
• Poor specification or inadequate information, leading to unsuitable materials, performance failures, water ingress, thermal bridging, acoustic issues, premature deterioration, or significant remedial works
• Lack of oversight, inspections and site visits which can include failing to identify issues with workmanship and defects, that were missed entirely
• Errors in contract administration, such as incorrect certification, inappropriate instructions, failure to manage variations, or failure to administer extensions of time or loss and expense fairly and in accordance with the contract
• Advice failures, including unsuitable procurement route recommendations, failure to advise on project risk, unrealistic programme advice, or insufficient warnings about budget or buildability
• Planning and rights issues, including failures to flag planning constraints, permitted development limitations, or design assumptions that cannot be supported on the site

Not every defect, delay or increase in costs will amount to professional negligence. Construction projects are generally quite complicated and conflicts often involve various parties, with differing expert opinions. The question the courts will ask is if the architect’s performance fell below the required standard, and whether that failure caused the losses claimed.

Time limits for bringing a claim

Limitation can be decisive in professional negligence claims and should be assessed at the earliest opportunity.

In broad terms, claims are often subject to a six-year limitation period in contract or negligence, and some negligence claims may have an alternative three-year period running from the claimant’s date of knowledge (with an overall longstop applying to certain claims). Limitation issues can be particularly complex in construction contexts, where defects may not become apparent until years after practical completion, and where different causes of action (and different contractual documents, including warranties) may carry different limitation periods.

Where time is tight, parties sometimes agree a standstill while pre-action steps are followed, or proceedings may be issued and then stayed to allow the pre-action process to be completed.