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Stéphanie de Halloy | Colliers | Brussels – Occupier Advisory

Stéphanie de Halloy

Occupier Advisory & Workplace Consultant

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Professional Summary

Stephanie has a 5 years of industry experience. She is a Workplace Strategy & change Management Consultant and a project coordinator at Colliers since 2020. 

She is responsible for the the development and implementation  of hybrid ways of working concepts that fit her clients company strategies, values and structures.  She creates inovative work environements and hybrid workplaces based on the activity based working & flexibility principles. 

She also develops and emplements change management strategies. 

For large projects gathering a lot of different teams, Stephanie acts as a project coordinator and makes sure the information flows between the different parties and the budget and planning are respected. She makes sure that the objectives and expectations are met. 



Certified in the Change Management process in accordance with Prosci methodologies and tools by Nexum (October 2022)


- Master in business engineering at the  Louvain School of Management 

- Bachelier in business engineering at Saint Louis 



- Carrefour: "I also wanted to thank you for the excellent collaboration: always efficient and smiling, a real pleasure! Thank you for everything".

- Puilaetco: "Thank you for your involvement, your flexibility and your excellent follow-up". 

- Marsh: " I sincerely wanted to tell you that I was delighted to meet you and Colliers in general. I particularly appreciated your professionalism as well as our numerous exchanges - always very constructive, not to mention our laughter."


Service Lines

Occupier Services

Property Type


My Team

Featured News

10 Nov 2021

New hybrid headquarters for TEC Hainaut

TEC Hainaut is completely rethinking its way of working for its future offices in Mons: thanks to the support of Colliers Belgium and its Workplace Strategy experts, the company is moving to a Hybrid Way Of Working.
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31 Aug 2021

Marsh goes hybrid

Adopting a new work organisation, transforming Marsh's existing offices and making them suitable for hybrid working, while keeping costs and works to a minimum: this was the challenge taken up by the Colliers Belgium teams in record time.
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