123 Queen Street

123 queen st - lanai - case study


CQ exteriorA new 380 kW trigeneration system will be installed to generate electricity, heating and cooling. Occupancy sensors and double glazing have been installed as part of the retrofit. It is expected that the upgrade will lift the building’s NABERS rating from two to four stars.

The 123 Queen Street agreement, signed between the City of Melbourne, National Australia Bank (NAB), Low Carbon Australia Limited and the building owner, is the first privately funded environmental upgrade agreement under the 1200 Buildings Program.

Fast facts

Building owner Eighth Grange
Building address 113–123 Queen St, Melbourne
Head contractor Environmental Technology Solutions (ETS)
Energy and design consultant Rudds Consulting Engineers
Energy consultant Ecoretro
Project value $1.3 million
Year of construction 1960
Gross floor area (GFA) 18,493m2²
Net lettable area (NLA) 16,240m2²
Number of floors 15
Building use Conference centre, hotel, hospitality, education and office
Number of tenants 12

Annual savings

  • $180,000 in energy bills
  • 2500 tonnes of CO2-e

Download 123 Queen Street Fact Sheet