Colliers International


Colliers International is a leader in global real estate and the delivery of commercial property services. They have 485 offices worldwide and employ around 15,800 employees.




Energy Audits

Stroma Tech was appointed to deliver energy audits of the Quorum, Bond Street and 1- 4 Portland Square, Bristol – 2 properties within Colliers International’s portfolio.  We advised on suitable measures for energy reduction, including energy modelling and the feasibility of fabric, building services and operational factors.


Energy Savings Opportunities

Specific improvement measures included:

  • Lamp replacement with LEDs
  • Changes to control set points and dead bands
  • Improvement to insulation and airtightness
  • Replacement of fan coils with efficient VRF type units
  • Voltage optimisation
  • Installation of solar PV


Colliers International Case Study – download

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Colliers International
Phil Carr