Vivienne Sedgley | 4-5 Gray's inn square

Practice Summary

Vivienne’s practice covers public and commercial law. She is often instructed in cases where there is an overlap between the two areas and/or where a public authority is involved. She has worked for a local authority on secondment, to assist with both specific commercial issues and ad hoc queries.

Areas of Experience (Select to add to the CV download)


Past work includes

• Acting in the first reported case on combined authorities: R (on the application of
Derbyshire CC) v Barnsley, Doncaster, Rotherham and Sheffield Combined
Authority [2016] EWHC 3355 (Admin).

• Advising and acting in election proceedings.

• Advising on a public authority’s obligations in a procurement dispute.

• Acting for a public authority in a dispute concerning data protection and related damages.

• Advising on parliamentary privilege and the drafting of legislation.

• Acting in professional regulatory proceedings and professional negligence proceedings.

• Advising and acting for public authorities and private individuals at inquests.

• Representing a local authority employee in a dispute regarding an admission under the Mental Health Act 1983.

• Working in-house for the House of Commons’ Office of Speaker’s Counsel and assisting the European Scrutiny Committee.


• Contract
• Agency
• Civil fraud
• Insurance
• Landlord and tenant

Past work includes:

• Acting for an appellant in an application to the Court of Appeal in a long-running dispute regarding breach of contract and agency.

• Acting in an application for a freezing order in a long-running commercial and property dispute.

• Advised on privilege in a £multi-million claim for breach of contract against a local authority.

• Led junior in a $multi-million international arbitration regarding a contractual dispute.

• Advising on the drafting of a £multi-million contract for electrical services.

• Acting for a group of companies in a claim regarding restitution, breach of contract and professional negligence.

• Acting for an insurer in a claim to set aside settlement agreements after fraudulent misrepresentation was suspected on behalf of a large number of
linked policyholders.

• Acting for a landlord in a dispute regarding the agency of an estate agent.

• Acting for an insurer in a dispute regarding the agency of a ‘ghost broker’.

• Acting for the director of a company with a £multi-million turnover in a successful application to dismiss a bankruptcy petition.

• Advising a government department on liability under a high value lease.

• Advising on insurance liability following property damage caused by a fire on adjoining land.

Professional posts

  • Appointed to the National Procurement Service for Wales’ panel of approved counsel (2017)
  • Appointed as clerk to the Bar Tribunals and Arbitration Service (2017)



  • The Honourable Society of Middle Temple, Certificate of Honour (awarded for outstanding achievement on the Bar Professional Training Course)
  • The University of Cambridge, MA (Hons) Philosophy
  • The College of Law, LL.B.

Professional memberships

  • Administrative Law Bar Association
  • Commercial Bar Association
  • Property Bar Association
  • South Eastern Circuit
  • Public Access Bar Association




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