Jarleth Heneghan


+353 1 639 5252
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Jarleth is a Partner in William Fry's Projects & Construction and Alternative Dispute Resolution departments. His practice is a mix of both contentious and non-contentious construction, projects and dispute resolution for State, international clients/intermediaries, developer, financial institutions, professional and contractor clients.

Jarleth advises on Irish and international construction and engineering bespoke and standard form agreements (e.g. RIAI, IEI, GCCC, JCT, NEC and FIDIC etc). He also advises on procurement and PPP/PFI. He also advises on alternative dispute resolution matters, including conciliation, mediation, adjudication, arbitration construction insolvency issues and rescue financing.

His experience includes advising:

  • the Developer on the development financing and construction of the Bolands Quay office and residential development and its forward sole to Google Ireland Limited.
  • daa on the procurement and development of the Dublin Airport Central office park and infrastructure at Dublin Airport, various complex projects across the DAA’s portfolio.
  • Circle K on all aspects of the acquisition, financing, development and operation of several service centres throughout Ireland.
  • Hammerson plc on the development of private rental sector residential apartments of Dundrum Town Centre.
  • Digital Realty Trust on the development of their new data centre at Profile Park, Dublin and refurbishment of existing date centres across their portfolio.
  • Irish Life on the development financing and contribution of two major office developments at George Quay and at 70 St Stephen's Green Dublin.

Jarleth is also a chartered surveyor with significant experience acquired in asset property management having worked with top tier firms in the United Kingdom. His qualifications include: Fellow of RICS and SCSI, Fellow of CIArb and practising arbitrator: CEDR Panel member, Chartered member of CIOB, CEDR qualified mediator and Solicitor, Law Society of Ireland and England and Wales - including higher rights of audience 

Jarleth was listed in Best Lawyers 2019 under 'The Best Lawyers in Ireland' for work in Construction Law.

Described by clients as "attentive and knowledgeable," Jarleth  is known for his work on both advisory and contentious construction cases. He maintains a particular specialism in liability quantum and time disputes. Chambers Europe 2018

The "meticulous" Jarleth Heneghan provides "very practical advice on the public procurement process". Legal 500 EMEA 2018 

In Chambers Europe 2017, Jarleth is described as having a broad practice covering construction advisory matters and dispute resolution. He has particular expertise in liability, quantum and time disputes. One client lauds his "hands-on and solution-focused" approach. In Legal 500 EMEA 2017, Jarleth is described as ‘professional and personable’ and ‘excellent’. 

Jarleth is described as "proactive and efficient" by Legal 500 EMEA, 2015 while Chambers Europe 2015 find Jarleth to be "highly efficient, because he has been trained in the construction industry, so he understands it really well. He is not only clear on the big picture, but also on the nuts and bolts of construction. It is great to deal with someone who understands the process."

In Chambers & Partners 2014, it is reported that clients say, Jarleth "provides an efficient and thorough service" on construction projects. 


Jarleth Heneghan Legal 500 Hall of Fame

IFLR Leading Lawyer - Highly Regarded 2019

Whos Who Legal

 Best Lawyers