We’re dedicated to bringing your vision to life and upholding our commitment to client care well beyond the original build. By uniting our expert team and loyal supply chain, we combine a seamless blend of creativity, insight, and experience. With our award-winning collaborative approach, we will support you every step of your project journey.

Empathy
Tenacity
Integrity
Entrepreneurial

Since our humble beginnings, we’ve always led with heart. Determined to overcome challenges and reimagine traditional ways of working, our core values inspire us to find fresh, smarter ways to deliver outstanding results for our clients. Our talented team embody these at every turn, shaping a culture built on care, dedication and bold thinking.

OUR PEOPLE

The strength of Walter Lilly is in our people

Every one of our projects is a shared journey. From the earliest design concepts through to completion and beyond, our diverse group of construction specialists work side by side with clients, professional teams, and our trusted supply chain partners to create outstanding spaces.

Applying a winning combination of technical knowledge and practical experience, our team takes great pride in their work. We make it our mission to understand each project’s unique requirements, proposing thoughtful, tailored solutions every time. Capable of rising to any challenge regardless of scale or complexity, our greatest strength isn’t just what we build – but who builds it.

Meet the team

Darren Size
Darren Size

CEO & Owner

Email
Chris Jones
Chris Jones

Chief Operating Officer

Email
Chris Butler
Chris Butler

Managing Director

Email
Andrew Postlethwaite
Andrew Postlethwaite

Director

Email
Chris Neal
Chris Neal

Pre-construction Director

Email
Duncan Beach
Duncan Beach

Commercial Director

Email
Holly Rich
Holly Rich

HR Director

Email
Tess Banning
Tess Banning

Head of Marketing

Email
Glen Davies
Glen Davies

Head of Supply Chain

Email
Evelina Sealy
Evelina Sealy

Head of Finance

Email
Matthew Alder
Matthew Alder

Senior M&E Services Manager

Email
James Ananthakumar
James Ananthakumar

Site Manager

Email
Stuart Andrews
Stuart Andrews

Site Manager

Email
Angel Arrocha
Angel Arrocha

Accounts Technician

Email
Harrison Burgoine
Harrison Burgoine

Site Manager

Email
Bradley Cheeseman
Bradley Cheeseman

Surveyor

Email
Mark Driscoll
Mark Driscoll

Senior Estimator

Email
Ella Elderfield
Ella Elderfield

Internal Communication and Charity Administrator

Email
Cara Eley
Cara Eley

Social & Sustainable Compliance Coordinator

Email
Sandra Faherty
Sandra Faherty

Training and Development Manager

Email
Zoë Gottlieb
Zoë Gottlieb

Sustainability Manager

Email
Skye Harris
Skye Harris

Bid & Content Writer

Email
James Hayward
James Hayward

Head of Planning

Email
Katie Hehir
Katie Hehir

HR Coordinator

Email
Dean Hollingsworth
Dean Hollingsworth

Head of Estimating

Email
Keith Ives
Keith Ives

Project Leader

Email
Jack James
Jack James

Site Manager

Email
Kate Johnson
Kate Johnson

Accounts Assistant

Email
Neil Kocks
Neil Kocks

Project Leader

Email
Jo McNulty
Jo McNulty

Recruitment Coordinator

Email
David Mitchell
David Mitchell

Building Services Director

Email
Liam Monaghan
Liam Monaghan

Construction Manager

Email
Steven Murray
Steven Murray

SHEQ Manager

Email
Jonathan Regnier
Jonathan Regnier

Senior Planner

Email
James Spencer
James Spencer

Commercial Manager - Science & Higher Education

Email
Samuel Stowe
Samuel Stowe

Site Manager

Email
Emma Thurlow
Emma Thurlow

Marketing Coordinator

Email
Dean Yems
Dean Yems

Commercial Manager - Landmark & Heritage

Email
Our story

Playing our cards right since 1924

In 1924, Walter Gent Lilly won the freehold to a London builder’s yard in a card game, unknowingly laying the foundations for a legacy. Priding his business on quality and integrity, he embraced the building trade and became an overnight success.

Fast forward to today, where Walter Lilly and sister company Size Group operate together under Wize Holdings — a distinctive group of outstanding businesses dedicated to delivering the highest standards in specialist construction, craftsmanship, and maintenance.

We’re taking on our largest, most ambitious projects yet, guided by the same family spirit that shaped our humble beginnings. Along the way, we’ve fostered lasting relationships with repeat clients built on trust, a reflection of our commitment to collaboration, reliability, and personalised care.

Learn more about our history here.