News release

JLL Ireland appoints Deirdre Costello as Head of Markets

We are pleased to announce the appointment of Deirdre Costello in a newly created and expanded role as Executive Director and Head of Markets Ireland

May 03, 2023

Gillian Murtagh

PR & Marketing Manager
+353 1 673 1697

Deirdre will continue in her role as Head of Office Leasing and will also lead our Markets Business stream, incorporating all of Agency Leasing, Tenant Representation and Property Management. In her new role Deirdre will lead the local team in the execution of the Markets global, regional and country strategy, leveraging the One JLL approach for our clients.

During her time at JLL, Deirdre has been involved in numerous landmark buildings in Dublin including Bankcentre Ballsbridge, Capital Dock, Cadenza, Boland’s Quay, 60 Dawson Street & Charlemont Square.

John Moran, CEO of Ireland said “Deirdre’s proven track record in the market, together with her client insight, innovation and strong management skills contribute to her natural ability to lead the Markets business in Ireland. She is a recognised and highly regarded professional within our team and across the industry. Deirdre intrinsically understands the fundamentals and challenges that exist in the Irish leasing market today but also recognises the significant changes happening that will impact how office, retail and industrial space is delivered and occupied in the future.

Our clients want greater focus on opportunities across Dublin backed by insightful, cutting-edge advice in a changing business environment. Deirdre’s leadership of the team and leverage of the Markets global, regional and country strategy will enable us to continue to provide the One JLL approach in even greater depth and scale than ever before.”

About JLL

JLL (NYSE: JLL) is a leading professional services firm that specializes in real estate and investment management. JLL shapes the future of real estate for a better world by using the most advanced technology to create rewarding opportunities, amazing spaces and sustainable real estate solutions for our clients, our people and our communities. JLL is a Fortune 500 company with annual revenue of $20.9 billion, operations in over 80 countries and a global workforce of more than 103,000 as of December 31, 2022. JLL is the brand name, and a registered trademark, of Jones Lang LaSalle Incorporated. For further information, visit