Our people

All together different - We're independent, multi-disciplinary real estate technical experts, project managers, and sustainability consultants. We understand how buildings work and how they perform. Meet our team.

Associate – Project Manager

Patrick Brennan

+44 738 596 9378

[email protected]

13+ years experience in Project Management delivering projects across the UK and Ireland.
CIOB Chartered and Member of APM
Extensive experience delivering both public and private sector projects.
Strong track record of delivering construction projects from minor works to £370mil major works.
Wide range of sector experience including retail, office, education, specialist healthcare, logistics and defense.
Expertise end-to-end project delivery including contract management.

Case Studies

Multidisciplinary services

Haymarket Square in Edinburgh, Scotland

A state-of-the-art, 15,000 sq ft Cat B fit-out office for Dentons.

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Multidisciplinary services

Tesco Distribution Centre in Donabate, Ireland

Surveying Irelands’ largest building ahead of purchase.

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News & Insights

News 04 SEP 2025

Q+A: Hollis CEO sets out European blueprint

In a recent interview with Green Street News, Andy Hay, CEO, shared our vision for the next chapter of our journey in continental Europe.

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News 13 NOV 2025

Festive Feet, Planet-Friendly Threads, and a Cause That Matters

At Hollis, people have always been at the heart of everything we do – our clients, our colleagues, our partners, and our communities.

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News 23 OCT 2025

Thrive in Construction Podcast: Comfort is Killing Progress ft. Andy Hay

Andy Hay joined the Thrive in Construction podcast, sharing why clarity, capability and courage - not comfort - drive progress in a fast-changing world.

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