This $110 million commercial building is comprised of 30,000m2 of A-grade commercial space over 18 levels, and five levels of basement car parking and associated plant rooms. This development also features a podium level that integrates into the future Parramatta Civic Place precinct and has a 5-Star Green Star rating, with the ability to upgrade to 6-Star.

  • Robert Bird Group was able to optimise construction cycle times via innovative use of in-situ concrete and precast frames.
  • Robert Bird Group designed a “hanging” podium structure using steel columns, to create a column-free ground floor lobby space.
  • RBG assisted in re-planning the basement car park to achieve greater structural and planning efficiencies, and eliminated an entire transfer level.
  • RBG’s design makes future provision for tunnel access to Civic Place.
  • Efficient post-tensioned concrete banded floors saved construction cost and time.
  • A16-metre high external colonnade serves as the architectural feature for the public external space.

Project Value:
$110 million
Year Completed:
Building Metrics:
18 Levels
5 Levels basement car parking
Environmental Performance:
5 Star Green Star Rating

Sydney Water Corporation & Brookfield Multiplex Developments
Denton Corker Marshall
Robert Bird Group Services:
Structural Engineering
Civil Engineering

Key technical challenges

  • The primary tower structure consists of a composite slab and beam structure. Due to the long beam spans and thin slab, extensive analysis for footfall vibration was required to ensure the structure achieved code requirements and client expectations.
  • Working with the existing structure and developing design solutions that strengthened rather than demolished.
  • Extensive co-ordination with the mechanical engineer to develop a strategy that minimised beam penetrations and beam notches.
  • Differential shortening analysis with consideration of mega truss, steel structure, concrete structure and existing structural elements

Environmental performance

  • 5 Star Greenstar
  • 5 Star NABERs Energy and 4 Star NABERs Water ratings.

Key technical innovation

  • Design of mega column and mega piles to resist the large concentrated truss loads. Specialised piling rigs were required to construct the 2100mm diameter mega piles required to resist the truss loads.
  • Developing a strategy to resist the mega truss uplift forces with the use of special high strength reinforcement.
  • To maximise the office floor column grids, HISTAR 460 HD columns were adopted in the design. Column cross sections are relatively small with thick web and flanges, as large as 140mm thick. HD Columns are fabricated and transported from Luxembourg.

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