Aonghus Heatley

I assist clients in the chemicals, food and beverage, electrical goods, real estate and automotive sectors across a broad range of legal regimes including those relating to:

• established and incoming environmental, sustainability and reporting regimes including CSRD, CSDDD; EUDR, right to repair, eco-design; PPWR, producer responsibility; environmental taxes; and single-use plastics;
• green and sustainability claims;
• product laws, including product recalls, safety, labelling requirements, composition and PSTI;
• environmental stewardship, compliance and operational issues (including PFAS); 
• chemicals (REACH), pesticides, biocides and labelling (CLP), f-gas, etc.;
• carbon reduction, emissions and energy use;
• regulatory investigations and responding to regulatory enquiries, including in relation to the Environment Agency, the OPSS, Trading Standards and their equivalents in other EU countries; and
• the environmental aspects of corporate and real estate transactions, including the allocation of environmental risks, due diligence; permit transfers, environmental insurance, the appointment of environmental consultants and remediation exercises.  

I also provide advice on public law matters, public international law and consumer law matters.  I am a contributor to The Chancery Lane Project.  

I was listed as a 'key lawyer' in my team in the 2024 and 2025 editions of Legal 500.  Clients have praised my “great regulatory knowledge”, described me as being “fun to work with” and remarked that I have “a business mindset, high integrity and a good judgement”.  

In 2023, I undertook a secondment to Fieldfisher's Brussels office and I regularly work with Fieldfisher lawyers in other jurisdictions on cross-border matters.  

Prior to joining Fieldfisher in 2021, I worked at the London and Hong Kong offices of Mayer Brown and at Greenberg Traurig in London.  In 2017-2018, I was seconded to Volvo Trucks (part of the Volvo Group) in Gothenburg, Sweden.  In 2008, I undertook an internship at the International Criminal Tribunal for the Former Yugoslavia in The Hague, Netherlands where I worked on the Prosecutor v. Prlić et al case under Karim Khan (now the Chief Prosecutor of the International Criminal Court).

Qualifications:

I am qualified in:

• England and Wales;
• Ireland (non-practising); and 
• New York (non-practising).

Education:

• LPC from Kaplan Law School;
• LL.M. in Public International Law from Leiden University; and
• LL.B. in Law & Politics (1st class) from the Queen's University Belfast (with a year studying business and law at Shenandoah University in Virgina, USA).

My LL.M. thesis on the compatibility of Irish nationality law with international law was published in the Irish Yearbook of International Law.  I have also contributed to the Oxford Reports on International Law.