Our people

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.

Chris Tregilgas

Business Development Director

Chris Tregilgas

  • Extensive industry knowledge in particular working across RCA, dilapidations, cost management and projects services
  • London-based Director with 18 years industry experience
  • Identifies solutions for our clients, thinking innovatively and sustainably across multiple sectors and consultancies.

Case Studies

Dolphin Square restoration

Cost Manager, CDM Advisor and Health, Safety and Quality advisor

Dolphin Square in Westminster, London, UK

A sensitive restoration of a landmark Westminster estate, delivering quality homes fit for modern living.

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Programme Management

Blackstone's PROXITY portfolio, Europe

We have been appointed by Revantage to provide a client-side PMO service for Blackstone’s new PROXITY vehicle, a newly acquired portfolio comprising over 500 industrial and logistics assets across 12 European countries.

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News & Insights

Insights 15 APR 2026

How can logistics assets stay resilient in a volatile market?

Warehousing and logistics assets are being exposed to a combination of global and domestic pressures. Read our interview with Hollis CEO, Andy Hay.

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News 11 NOV 2025

Hollis Insights Breakfast Talk 2025 highlights

From office repositioning and building safety to tech-driven value and capital market shifts, our speakers tackled the big questions.

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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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“What I love most about my work is meeting new people, building strong relationships is at the heart of successful business development. With a background in quantity surveying and over a decade of experience in Reinstatement Cost Assessments, I bring a technical understanding that helps me quickly grasp client needs and match them with the right solutions. I’m excited to be at Hollis, working with a brilliant team to grow our client base and deliver work that adds real value.”