Lisa Joyce


Lisa Joyce is a Partner in the Public, Regulatory and Investigations Unit of our Litigation department. Lisa provides practical and informed advice to public bodies and people dealing with such bodies, regulators and regulated persons, and anyone undertaking, or subject to, statutory or non-statutory investigation.

This includes advising on what public bodies can properly do, fair procedures, statutory interpretation, regulatory compliance, investigation and enforcement, and advising on all types of public law litigation, principally judicial review proceedings and statutory appeals and applications.

Lisa also has a particular focus on Information Law, advising extensively on all aspects of access to, and disclosure of, information, including freedom of information, access to environmental information, data protection, discovery and privilege


  • Public and Administrative Law
  • Regulatory Law
  • Professional Disciplinary Law
  • Dispute Resolution
  • Information Law

Representative Matters

  • Representing the Central Bank of Ireland in successfully defending three sets of urgent court proceedings before the High Court and Court of Appeal challenging the administrative sanction procedure for regulated financial services providers under the Central Bank Act 1942, as amended, including the successful defence of injunction and discovery interlocutory applications. These were the first such challenges to this legislation and matters of national and European importance.
  • Advising the Sustainable Energy Authority of Ireland (SEAI) on an ongoing basis on its development, implementation and administration of numerous statutory and non-statutory sustainable energy schemes. This includes the Better Energy Rating, Better Energy Homes, Communities Energy Schemes, and the Support Scheme for Renewable Heat. Also advising SEAI in defending challenges against its decisions pursuant to these schemes, including statutory and non-statutory appeals
  • Advising numerous public, private and voluntary sector bodies on data protection and GDPR compliance, including statutory investigations by the Data Protection Commission.


Legal 500, 2021

‘Next Generation Partner’ Lisa Joyce attracts client praise as “a standout legal adviser with expert insight.

Legal 500, 2020

‘Lisa Joyce particularly stands out – she is highly experienced in the public law area and is conscientious and thorough with excellent judgement. She is also highly responsive to clients and proactive in meeting their needs.‘

Speaking Engagements & Teaching

Speaker, “Statutory Investigations: An Update from the Courts”, Regulatory Investigations & Inquiries Seminar, Mason Hayes & Curran, 22 November 2018

Specialist panel speaker, “Financial regulation: an update on administrative sanctions”, UCD Centre for Constitutional Studies Judicial Review Conference: Recent Developments in Public Law, Sutherland School of Law, UCD, 11 June 2018


Joint author of the Mason Hayes & Curran Freedom of Information Sourcebook (3rd edition, 2016)

  • LinkedIn

Areas of Expertise

Public, Regulatory and Investigations Dispute Resolution Charity Law & Not-for-Profit Freedom Of Information

Professional Memberships

Law Society of Ireland

Association of Regulatory and Disciplinary Lawyers


National University of Ireland, Galway, BCorp Law

National University of Ireland, Galway, Postgraduate LLB