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Breellen is a Partner within the Property and Projects team and specialises in environmental, development and planning and natural resources law.

Breellen advises both private and public sector clients across various industries on planning, environment and government matters and has worked both within and for government agencies in NSW and in the UK.

Breellen has particular expertise in providing practical, strategic legal advice on Federal and State planning and environmental approvals processes for major projects, including under the Environmental Planning and Assessment Act 1979 (NSW), the Environment Protection and Biodiversity Conservation Act 1999 (Cth). In addition, Breellen advises on waste regulation, contamination, environmental and reputational risk management and environmental regulation.

Breellen also handles litigious matters relating to development appeals, judicial review and environmental prosecutions in the Land and Environment Court.

Breellen is admitted as a solicitor in NSW and England and Wales. She also regularly presents seminars and authors articles on a range of topics including climate change, environmental compliance, pollution, contamination as well as legislative changes.

Breellen is also recognised in the 2020 and 2021 Doyle’s Guide as a recommended lawyer in town planning and development law for NSW. She has also been listed in the Best Lawyers in Australia 2021 edition for Planning and Environmental Law.


Breellen’s expertise includes: 

  • environmental risk management and compliance 
  • pollution and licensing, including enforcement and litigation 
  • waste, including licensing, levies and compliance issues 
  • biodiversity protection, including biobanking
  • native vegetation and natural resource management 
  • contaminated land management and remediation 
  • strategic planning and development advice 
  • environmental impact assessment 
  • planning agreements
  • heritage law 
  • land and Environment Court litigation 
  • planning and environmental due diligence 
  • climate change law and policy 
  • sustainability, including environmental upgrade agreements 
  • corporate social responsibility.


25 November 2020 - Knowledge

NSW Government Bulletin


Does the Court have the power to grant an easement over community land? A recent decision of the Court of Appeal suggests that it may not. In this article, we look at the decision of the Court of Appeal in Aussie Skips Recycling Pty Ltd v Strathfield Municipal Council [2020] NSWCA 292.

10 November 2020 - Knowledge

Director liability for environmental offences

#Planning, Environment & Sustainability

We look at the categories of executive liability under a key environmental protection legislation in NSW and how you can manage your risk as a director or manager.

23 September 2020 - Knowledge

EPBC Act review update: A power shift on the horizon?

#Planning, Environment & Sustainability

Key changes to national environmental laws, including assessment functions being handed to the states and the likely inclusion of national environmental standards, are being proposed to address current and future challenges in Australia.

03 September 2020 - Knowledge

Overview – a new SEPP for housing diversity in NSW

#Planning, Environment & Sustainability, #Property, Planning & Development

The Department of Planning, Industry and Environment has set the ambitious goal of providing more affordable housing in all local government areas in NSW

08 July 2020 - Knowledge

Court finds Council not entitled to costs following discontinuance of Class 1 appeal

#Planning, Environment & Sustainability

A recent decision of the NSW Land and Environment Court has confirmed that a Respondent Council is not entitled to recover its costs simply because an applicant discontinues its Class 1 appeal prior to final hearing.

17 April 2020 - Knowledge

Review of Environment Protection and Biodiversity Conservation Act 1999 – a chance to refocus our national environmental laws

#Planning, Environment & Sustainability

The Environment Protection and Biodiversity Conservation Act 1999 (Cth) (EPBC Act) is undergoing a ‘once in a decade’ review (Review).

08 April 2020 - Knowledge

Review of the EPBC Act – Indigenous knowledge and culture focus

#Planning, Environment & Sustainability

The Environmental Protection and Biodiversity Conservation Act (1999) is currently under review with submissions invited from stakeholders. This article summarises the issues raised in the review in relation to Indigenous culture and knowledge, which is highlighted as a key focus in the terms of reference for the review.

31 March 2020 - Knowledge

Land and Environment Court rejects application for easement over community land

#Planning, Environment & Sustainability

This article looks at a recent 88K easement case and clarifies critical questions regarding what is an easement at law, what is required to prove “reasonable necessity”, who bears the onus and how impacts on the land are to be assessed.

25 March 2020 - Knowledge

Inside track: Local Government

#Local Government

As the threat of COVID-19 continues to escalate, local governments across Australia have taken swift action to combat the virus, including recent legislative changes to elections and planning laws. In this article we examine some of those measures and other implications for Councils.

16 October 2019 - Knowledge

NSW Government Bulletin


02 October 2019 - Knowledge

Australia’s first National Freight and Supply Chain Strategy: Making all governments ‘freight aware’ (Part 3)

#Transport, Shipping & Logistics, #Planning, Environment & Sustainability

19 August 2019 - Knowledge

Do you need an Environmental Protection Licence with that?

#Planning, Environment & Sustainability

The Protection of the Environment Operations Act 1997 requires an Environmental Protection Licence for certain activities that are likely to impact on the environment or cause pollution.

Upcoming Seminars