115 King William Street

  • 24 Office levels
  • 360 m2 site area
  • 91 metres high

Adelaide’s fourth tallest building at the time of build, 115KWS is an award winning, industry recognised construction achievement. With a small 360m2 footprint, site access challenges were overcome through strategically positioning the crane in the lift shaft.

The project was selected as a finalist in the 2018 Property Council of Australia/Rider Levett Bucknall Limited Innovation and Excellence Awards as well as receiving a commendation award in the Master Builders Australia 2015 Building Excellence Awards in the category Commercial / Industrial Building $20m to $50m.

To preserve the adjacent 140 year old building, demolition of the existing building was completed by hand using jack hammers and hand tools. SYNERGY CONSTRUCT managed the high-risk environment by using direct labour force in lieu of subcontractors on: piling, precast concrete panel erection, caulking and grouting and the supply and placement of form work.

SYNERGY CONSTRUCT proposed structural redesign incorporating Slimdek and structural steel floor system which reduced the concrete required on each floor plate by around 40% lowering costs and increasing safety for construction. Safety statistics on the project were rated excellent.

The construction of 115 King William Street was completed in 24 months which was ahead of the contract program.

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