Nicholas Ostrowski > Chambers of Stephen Hockman KC and Mark Watson KC > London, England > Barrister Profile

Chambers of Stephen Hockman KC and Mark Watson KC
Six Pump Court


Nicholas Ostrowski’s practice covers the whole range of civil and criminal matters across Chambers’ specialist practice areas, particularly in regulatory law of all types and in planning and environmental law. Nicholas’s broad workload means that he has significant experience as a trial advocate and appears in a wide range of courts and tribunals. He is appointed to the Attorney General’s List of Junior Civil Counsel to the Crown and to the Attorney General’s List of Specialist Regulatory Advocates and is equally at home in the civil and the criminal courts. In his regulatory practice, he has appeared and advised for the prosecution and defence in a range of cases brought on behalf of the Environment Agency and the Health & Safety Executive (HSE). Nicholas also has significant experience of financial regulation and he has been instructed on behalf of the Enforcement and Market Oversight Team at the Financial Conduct Authority (FCA) as well as the Consumer Credit team at the Office of Fair Trading (OFT) and he frequently advises and appears for and against local authorities in fraud cases. In his planning practice, Nicholas represents Local Planning Authorities and developers in planning inquiries as well as giving advice across a broad range of planning matters. He has particular experience of enforcement matters at the High Court, in enforcement inquiries and at trial for breach of enforcement notices. Nicholas also appears frequently in multi-track and fast track trials across different areas of law including housing, construction and contractual disputes. He has experience of applying for interim relief including freezing injunctions and other urgent applications in the High Court.


Called: 2009; Gray’s Inn. David Karmel Scholarship; Prince of Wales Scholarship; Travelling Scholarship. Nicholas is an active member of the Bar Pro Bono Unit and has appeared pro bono in a variety of matters. In 2012 Nicholas was awarded a Pegasus scholarship by Inner Temple and worked with a number of environmental and planning lawyers in the United States. Prior to commencing practice at the Bar, Nicholas worked as a paralegal at the Baha Mousa Public Inquiry and was granted a scholarship to assist in the appeals of a number of prisoners on death row at the Independent Jamaican Council of Human Rights.


UK Environmental Law Association; Haldane Society; Administrative Law Bar Association; Nicholas is an active member of the Bar Pro Bono Unit and has appeared pro bono in a variety of matters.


St James School for Boys, Twickenham; University of York (2005 BA English Literature and Politics, First); University College London (2006 MA Legal & Political Theory); City University (2007 Graduate Diploma in Law, Commendation); BPP (2008 Bar Vocational Course, Very Competent).

Lawyer Rankings

London Bar > Health and safety

(Leading Juniors)Ranked: Tier 4

Nicholas OstrowskiSix Pump Court ‘Nick is a very composed and persuasive advocate. He is able to identify the important issues in a case and convey points in a very calm but forceful manner.‘

London Bar > Environment

(Leading Juniors)Ranked: Tier 3

Nicholas OstrowskiSix Pump Court

Leading set in environmental lawSix Pump Court is well regarded for housing a team of ‘specialists in environmental law‘. In a prominent highlight for the set, a silk and two juniors – Stephen Hockman KC, Charles Morgan  and Nicholas Ostrowski respectively – appeared before the Supreme Court in The Manchester Ship Canal Company Ltd v United Utilities Water Ltd, a case arising from longrunning litigation over alleged sewage discharges into the Manchester Ship Canal. The main issues in the case focus on the operation of the sewerage system in England and Wales, and the liability of undertakers for polluting discharges. In another matter, Christopher Badger is representing a waste recycling company in judicial review proceedings concerning the company’s proposed exportation of hazardous waste to Norway.