(De)sign Of The Times: Blurred Lines On Build Performance Liabilities

• Published date: 15 September 2021
• Subject Matter: Real Estate and Construction, Construction & Planning
• Law Firm: Fenchurch Law
• Author: Ms Amy Lacey

Design requirements are at the heart of any construction contract, and the precise formulation of applicable standards is crucial to evaluation of risk. Recent trends indicate that designers in the UK construction industry are assuming increasing levels of liability on build performance, with significant implications for coverage under professional indemnity insurance.

In Arbitration Appeal No 1 of 2021 [2021] CSOH 41, the Scottish Court of Session recently considered the interpretation of deemed design liability clauses, and upheld a provision imposing responsibility on a consultant for designs pre-dating its appointment and which had been proposed without its involvement. Whilst similar clauses may be given a narrower interpretation in a multi-disciplinary design context involving several third party consultants, the scope of such provisions should be carefully considered at the outset, to limit exposure and potential uninsured loss.

Reasonable Skill & Care vs. Fitness for Purpose

A contractor or professional with design responsibility should exercise reasonable skill and care, based on standards expected of an ordinary skilled person performing and professing to have that special skill, so that liability will not arise unless they have acted negligently.

Express contract terms often impose more onerous fit for purpose type obligations, providing a warranty that the works will conform to specified employer requirements. Liability arising from a higher contractual standard than that imposed by ordinary common law, including certification of compliance with specified design, will usually fall outside the scope of cover under professional indemnity insurance.

Strict liability can be implied in relation to design elements of work under a design and build contract (Viking Grain Storage v TH White Installations (1985) 3 Con. L.R. 52); or where the contractor is informed of the purpose for which the works are required and the employer relies upon the contractor's skill and judgement (Greaves v Baynham Meikle [1975] 1 W.L.R. 1095).

Industry standard forms address the issue in different ways, with JCT contracts requiring reasonable skill and care, whilst all FIDIC contracts impose some degree of fitness for purpose obligation. This divergence in part reflects the usual approach in different industry sectors, with design and construction contracts for energy or infrastructure projects typically including output specifications capable of measurement through...