Principal Designer & Project Management – G4S

Key Points

  • Principle design
  • Project management delivery of 3 projects simultaneously
  • Replacement of air conditioning systems
  • Fire alarm replacement
  • Refurbishment of 3 conference rooms
  • Health and safety advice

Client Requirement

To carry out the Project Management and Principal Designer roles for the HMRC on behalf of G4S Facilities Management.

Callidus were called upon to act as Project Manager and Principal Designer,  to manage delivery of three schemes at HMRC at Trinity Bridge House in Manchester.  The schemes were to be delivered simultaneously on site by different Contractors.

The projects consisted of the replacement of air conditioning systems (lifecycle), fire alarm replacement (lifecycle), and the refurbishment of three conference rooms (business driven).

The HRMC are the UK’s tax, payments and customs authority, collecting the money that pays for the UK’s public services and help families and individuals with targeted financial support. Callidus has a long-standing relationship with G4S and has worked with them on a range of different projects over the last 8 years.

With more than 58,500 employees, nearly £540 billion revenue, and around 45 million customers, HM Revenue and Customs (HMRC) is a major government department with serious responsibilities.

HMRC’s work and the revenue it collects touches the lives of every single adult and business in the UK, from students and single mothers, to the largest multi-national corporations. HMRC is the business that helps keep the UK working. As such, HMRC is completely in a league of its own.

Principal Designer

Project Management


Project management & principal designer – G4S

Project Team
Callidus – Project Management & Principal Designer

Our Solution

Callidus  successfully managed the  projects which were delivered to programme and on budget; The Client, G4S were acting as Principal Contractor and our role was to manage the interfaces on site, acting as site coordinators.

Two of the projects were delivered in office hours with the third overnight.  We continued to monitor night works arranging any necessary shut downs with the Facilities Team ensuring the offices were fully functioning during the day.

Benefits of using Callidus

• Callidus worked collaboratively with the Client, G4S and HMRC becoming an extension of their Team to successfully manage all site issues.
• Our Principal Designer identified and managed all site risks ahead of the works commencing to enable timely delivery.
• Being on site during the works enabled us to o closely manage and monitor progress of each of the contractors and solve any issues/delays before they happened.
• We scheduled and chaired regular Progress Meetings to inform all of the Stakeholders.
• Having an on-site presence gave our client reassurance and comfort that if an issue did arise it was dealt with in a timely manner, not impacting the programme Any last-minute changes in programme or design were dealt with ‘real time’. Being based on-site ensured the performance and quality of workmanship could be closely managed.

Client Testimonial

Michael Goldie, Project Manager at Callidus was appointed to run 3 major projects at HMRC in Manchester all running concurrently!

• Fire Alarm Replacement to 8 storey large city centre building
• Conference Room Refurbishment – 3 large conference rooms
• Air Conditioning Replacement – Meeting rooms and comms rooms
Michael managed all three projects in a professional way and ensured all contractors were inducted to site, understood health and safety for the site and also had to co-ordinate three contractors working around each other at the same time – which is not an easy task.

Weekly meetings were held with contractors and the client to ensure a good flow of communication was in place and to answer any questions from all parties and that the projects were running to programme. He also ensured on site FM staff were kept up to date on progress.

All three projects were completed on time with no disruption to the normal operation of the building.

Joanne Pipes, Accounts Manager – G4S Facilities Management


Contact Callidus

For more information on our Principal Designer or Project Management service please email or call 0113 385 2740 to speak with a consultant.