Mr Brendan Slattery > McCann FitzGerald LLP > Dublin, Ireland > Lawyer Profile

McCann FitzGerald LLP

Work Department

Environmental and Planning, Projects and Infrastructure, Energy and Natural Resources


With almost twenty years’ experience in the areas of environment, planning and climate change, Brendan is recognised as an expert in both planning and environmental law at national and EU level, having advised regulatory authorities, statutory bodies, local authorities and developers on the delivery of a wide range of local and national projects.

In recent years, Brendan has advised on almost every significant infrastructure project across Ireland spanning the areas of energy, transport, water, wastewater and the agri-business sector.

Brendan lectures significantly in planning law on each of the Professional Practice Course in Conveyancing, the Diploma in Commercial Conveyancing and the Diploma in Planning and Environmental Law.  He also lectures in planning and environmental law on the Diploma in Physical Planning, the Diploma in Environmental Engineering, the MSc in Environmental Science and the MSc in Biodiversity and Conservation.


Qualified in 2003


Law, LL.B, Trinity College Dublin

Lawyer Rankings

Ireland > Planning and environment

(Leading individuals)

Brendan SlatteryMcCann FitzGerald LLP

McCann FitzGerald LLP advises on the planning and environmental framework of a variety of complex projects, including public transport and strategic housing developments. The team has a strong presence in the energy sector, where it acts for public bodies and local governments and advises on both renewable energy and conventional energy projects. Michelle Doyle is an experienced litigator who specialises in the risk management of infrastructure projects from a planning and environmental perspective and jointly heads the team with Brendan Slattery , who has significant experience of working with large-scale residential developments.

Ireland > Public sector

McCann FitzGerald LLP is well known for working with the full range of government departments, including justice, infrastructure, energy, telecoms, health, insurance, and utilities. The team regularly advises regulators on investigations, enforcement and judicial review proceedings and assists clients with procurement and state aid matters. Practice head Eamonn O’Hanrahan advises statutory agencies on drafting legislation for future developments. Michelle Doyle assists public sector bodies with the regulatory framework for major infrastructural projects and large-scale litigation, while Seán Barton specialises in administrative and public law. Rosaleen Byrne and Catherine Derrig have longstanding experience of handling complex disputes and contentious regulatory matters for public sector clients. Brendan Slattery  and Orlaith Sheehy are also recommended.

Ireland > Energy and natural resources

The sizeable team at McCann FitzGerald LLP advises project sponsors, lenders and state bodies on complex matters in the energy sector, along with diversification of gas supply, biomethane and hydrogen production, and the development and deployment of liquefied natural gas matters. The practice acts for major players engaged in the full cycle of project development, including environmental law issues, financing transactions and planning matters. It also offers clients support across all conventional and renewable technologies, including onshore and offshore wind, solar and natural gas. Practice head Valerie Lawlor has considerable expertise in M&A and IPO transactions in the oil and gas sector, while Rory O’Malley leads on equity fundraising in the renewables sector. Brendan Slattery specialises in environmental and planning matters. Éamon Ó Cuív is the key contact in the firm’s London office.

Ireland > Projects and PPP

McCann FitzGerald LLP’s projects team works with public and private sector clients across multiple sectors, including transport, utilities, education, housing, real estate, and telecommunication. The team is particularly active in the energy sector, assisting clients with funding requirements and structures on multiple high-value wind farm projects. Eamonn O’Hanrahan  and Colm Fanning co-head the practice and have significant experience of advising on financial aspects of public transport and housing projects. Stephen Proctor specialises in construction and engineering projects, and Brendan Slattery advises local authorities and project developers on environment and planning law. Other key contacts include Kevin Kelly, Orlaith Sheehy, Seán Carr, and senior associate Joyce Cunningham.