grainne IELAGrainne O’Callaghan, Secretary & Treasurer 

Associate Solicitor in Arthur Cox LLP


Grainne is a solicitor practising in the area of Planning and Environmental Law at Arthur Cox LLP. Grainne lectures part-time on the TUD Masters of Science in Spatial Planning course and is the current Secretary and Treasurer of the Irish Environmental Law Association.


2013 – Bachelor of Civil Law with Irish, Maynooth University

2019 – Admitted as a Solicitor in Ireland

2019 – Admitted onto the Irish Language Register of Practising Solicitors

2023 – Advanced Diploma in Planning and Environmental Law, Kings Inn

Year Qualified


Practice Areas

Planning and Environmental law, Regulatory Law, Judicial Review and Criminal Law.