Sydney, New South Wales, Australia
Australia Square Plaza (ASQ) sits in the heart of the Sydney CBD, a landmark building of approximately 43,000sqm spanning 40 tower floors and 13 plaza levels. Dewick & Associates provided Mechanical Engineering expertise, Design Drawings and O&M Manuals for the subdivision of Levels 6 and 7 of ASQ into speculative tenancy suite fitouts, working with Grosvenor Engineering Group. The existing mechanical services were reviewed and reconfigured to suit the new architectural layout, with supplementary air conditioning and ventilation provided for meeting rooms and enclosed spaces.
By Lauren Sahin
Credit: Image generated by Gemini AI, 2026. Royalty free. Conceptual image based on the project location.
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Grosvenor Engineering Group delivered the mechanical services for the subdivision of Levels 6 and 7 at Australia Square Plaza into speculative tenancy suite fitouts, reviewing and reconfiguring the existing mechanical services to suit the new architectural layout and adding supplementary air conditioning and ventilation for meeting rooms and enclosed spaces. Speculative fitouts in a major Sydney CBD tower like ASQ need mechanical engineering and design drawings that anticipate a range of future tenant configurations, rather than a single known end user. Grosvenor Engineering Group engaged Dewick & Associates to provide Mechanical Engineering expertise, Design Drawings and O&M Manuals for the subdivision works.
Reconfiguring existing mechanical services within a 40-storey tower to suit a new speculative tenancy layout means working within constraints set decades earlier by the building’s original base-building design, while still delivering supplementary air conditioning and ventilation that performs reliably in new meeting rooms and enclosed spaces. The documentation needed to draw a clear line between what was original base-building plant and what was newly installed or reconfigured, so future tenants and ASQ’s facilities team can understand the mechanical system without ambiguity.
Dewick & Associates’ technical authors produced Mechanical Engineering documentation, Design Drawings and O&M Manuals for the Levels 6 and 7 fitout at Australia Square Plaza, detailing the reviewed and reconfigured base-building mechanical services alongside the new supplementary air conditioning and ventilation, with preventative maintenance schedules to support ASQ’s facilities team and future tenants.
The project resulted in clear Mechanical Engineering documentation, Design Drawings and O&M Manuals for the Levels 6 and 7 speculative fitout at Australia Square Plaza, giving future tenants and the building’s facilities team a reliable reference for the reconfigured and supplementary mechanical systems in this landmark Sydney CBD tower. For a no-obligation quote on mechanical engineering and O&M documentation for your next commercial tower fitout, contact Dewick & Associates.
The content in this case study has been informed by project documentation and client communication provided to Dewick & Associates during and following the completion of the project.
Note: Some content in this case study draws on a combination of sources rather than direct quotation. Where this is the case, contributing sources are acknowledged above rather than cited inline.
Technical authoring of D&A format O&M Manuals enabling efficient plant operation and effective maintenance for equipment longevity, including:
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