Cassandra Byrne

Consultant

Cassandra is a Consultant in our Projects & Construction & Engineering departments.

Cassandra Byrne

She has a broad practice with over twenty years’ experience advising public sector, utility and private entities on all aspects of projects and construction, with particular expertise and specialisation in construction procurement. She advises on bespoke and standard form contracts including those of RIAI, IEI, JCT, FIDIC, NEC, CWMF and OGP.

Cassandra also specialises in projects and construction dispute resolution and dispute avoidance under all construction and engineering contract forms, including the public works contracts. She is a Fellow of the Chartered Institute of Arbitrators, arbitrator and Accredited Mediator and advises on related litigation, adjudication, conciliation, expert determination, domestic and international arbitration, and construction insolvency.

Recent significant experience includes advising:

  • EirGrid plc, the Irish state-owned electricity transmission operator, on the procurement, design and construction of circa 450 MW of temporary emergency generation.
  • The Royal College of Surgeons in Ireland on development of Education and Research Centres at various University and hospital campus locations;
  • Institutional investor Irish Life on its waterfront development 1 Georges Quay including fit-outs for tenants WeWorks and Pepsico; on a new build office development at 70 St Stephen’s Green, Dublin 2 using innovative green technology; and on development of the Irish Life campus;
  • Private equity company Kennedy Wilson on various development projects and their financing/refinancing across its portfolio  including Clancy Quay, Islandbridge, Dublin 8 (Ireland’s largest private rented sector (PRS) scheme);
  • Edwards Life Sciences on development of its largest European med-tech facility in South West Ireland and other clients on facilities in the life sciences and pharmaceutical sectors;
  • SIRO on development aspects of investment and financing for its broadband network expansion (€620m) and
  • Circle K on the design, build, finance and operation and maintenance of the Motorway Service Area Centres PPP Project.

 

2026 Chambers Europe
2026 Legal 500 EMEA
2025 Chambers Europe
2025 Legal 500 EMEA
2025 IFLR 1000

Practice Areas

Alternative Dispute Resolution
Public Procurement
Projects
Public Sector
Environment & Planning

Related Sectors

Construction & Engineering
Energy & Infrastructure

Related Knowledge

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PWC: Adjustments to Contract Sum (Part 2)

The PWC mandatory Clause 10.6 valuation hierarchy and fair pricing remedies explained.

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PWC: Adjustments to the Contract Sum (Part 1)

A contractor must comply with the contractual claims procedure before any assessment of valuation adjustments under the Public Works Contract (PWC).

Jarleth Heneghan
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Jarleth Heneghan
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William Fry advises RCSI Project Connect

William Fry advised RCSI on Project Connect at St Stephen’s Green, now award winning at the 2026 Irish Construction Excellence Awards

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New BER System from 24 May 2026 – what do you need to know?

New BER System from 24 May 2026 – what do you need to know?

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William Fry advises AVK on Europe’s First Data Centre Microgrid

William Fry is pleased to have advised AVK on Europe's first entirely off-grid energy solution for data centres

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“Smash and Grab” Adjudication Dismissed by High Court

The High Court rejects the application of "smash and grab" adjudication under the Construction Contracts Act 2013.

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Arbitration (Amendment) Bill 2025 supports international investment

We outline what you need to know about the Arbitration (Amendment) Bill 2025 initiated to give effect in Ireland to certain international agreement...

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Irish High Court Refuses to Enforce Adjudicator’s Decision

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Changes to NEC4 Contracts – Dispute Management and Conflict Avoidance Clauses

The NEC has published guidance on its new conflict avoidance clauses and process for use on NEC4 contracts and sub-contracts.

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