Long crack running down a painted wall

Expert Opinion in Construction Disputes

When parties in a construction contract fail to agree, the dispute may go to adjudication, arbitration or litigation, although many disputes are settled without formal proceedings. In such an event, an independent opinion from an expert witness architect helps the court or tribunal understand the technical issues.

The primary duty of the expert is to provide impartial evidence based on facts. An expert witness is appointed either by one party or as a single joint expert; an expert adviser advises one party privately and does not give evidence. Either way, the expert's input helps the parties understand the technical issues, and the evidence helps the judge come to a decision.


Party-Appointed Expert

Generally, a party-appointed expert witness will explain to the court the technical reasoning behind a particular issue in the dispute, with an overriding duty to the court rather than to the party paying.

We give impartial evidence on whether a professional was negligent, what a reasonable professional would have done in the same circumstances, and any loss a negligent act caused.

Expert witness work in construction disputes since 1992

Expert Adviser

An expert adviser, sometimes called a shadow expert, is instructed privately by one party to help it understand the technical issues in a dispute. An expert adviser does not give evidence to the court, but can help that party and its solicitors weigh up the strengths and weaknesses of the case.

In litigation, the expert witness's overriding duty is to help the court on matters within their expertise, and this duty overrides any obligation to the party instructing or paying them. In arbitration, the expert owes the same duty of independence to the tribunal.

Party-Appointed Expert

Single Joint Expert

Expert Adviser

Professional Negligence

Payment Disputes

Boundary Disputes

Party Wall Matters

Construction Defects

Reports for Court

Reports and Oral Evidence

Because an expert witness has an overriding duty to the court or tribunal in litigation and arbitration, we pride ourselves on giving precise, reliable and independent opinion on the technical issues in a dispute. We prepare a comprehensive report for litigation and arbitration, and give oral evidence where the court or tribunal needs it.

William Bates's history of working with numerous clients and his expertise in building and construction mean that he can give clear, impartial expert opinion whenever a construction dispute arises. Whether it's professional negligence, a payment issue, loss assessment or building defects, you can rely on William Bates to provide an impartial and professional service.


Party expert and single joint expert appointments

An Expert Witness Since 1992

As an expert witness in construction disputes since 1992, we have secured an excellent reputation in the South of England and other parts of the country. William Bates is a member of the Chartered Institute of Arbitrators, The Academy of Experts and The Society of Expert Witnesses, so we understand what is required to meet the legal duties of an expert witness. Whether he is instructed by the claimant, the defendant or both parties jointly, his evidence is independent and his duty is to the court.

Mr Bates has particular experience in claims of professional negligence and disputes over professional fees between the architect and the client. He is a recognised expert witness and has been appointed in different dispute cases throughout England and Wales.

He appears on the RIBA list of architect expert witnesses and has been appointed to assist the Architects Registration Board (ARB) with claims made against architects. His experience includes the High Court (Technology and Construction Court), as well as formal and informal hearings and mediations.

Close view of a failing roof covering

Instruct an Expert Witness Architect

William Bates can be appointed as a party expert or as a single joint expert in construction disputes, including professional negligence claims, payment disputes and party wall matters.

Our expert witness architect services are available throughout Sussex, Kent, Surrey and London, with work across England and Wales. Call 01435 812973 to discuss your case.

More of Our Architectural Services

Residential Architecture

New homes, extensions, conversions and renovations, designed around the way you live.

Commercial Architecture

Retail, commercial, leisure and public buildings, from first ideas to completion.

Listed Buildings

Sympathetic alterations, extensions and repairs that respect a listed building's character.

Architect Heathfield provides expert witness services in construction disputes, particularly alleged professional negligence and payment disputes, as well as party wall matters. William Bates acts as party expert or single joint expert across England and Wales, preparing reports and giving oral evidence. Call 01435 812973 to discuss your case.