Hugh Flanagan has a practice encompassing all aspects of planning, major infrastructure, and compulsory purchase law. He specialises particularly in energy (including renewables), transport, waste, and residential projects, as well as compensation, land valuation and rating. He acts for developers, individuals, central government and local authorities. He frequently appears in courts and tribunals at all levels up to the Supreme Court, as well as at planning inquiries and examinations. He is a member of the Attorney General's A Panel of Counsel, in which capacity he acts for the Government in significant planning and public law cases, and he is an editor of the Encyclopaedia of Compulsory Purchase and Compensation and Ryde on Rating. He has been shortlisted for Planning and Land Use Junior of the Year by the Legal 500 Bar Awards 2024 and is consistently ranked as a top-rated junior in Planning Magazine’s survey.