We’re much more than your average engineering firm…we manage all the engineering services needed on your project.

We begin by thoroughly reviewing your project and identifying all of the potential opportunities and limitations. Everything from capitalising on the site, expediting local authority approvals and construction cost savings, through to sales and financing strategies.

This early review process results in efficient delivery, less stress and increased returns.

We appoint a dedicated project director, who works with you to determine what engineering services you need, when you need them, and oversees those services through to completion.

We deliver structural, civil, and flood services in-house, and draw on our trusted network to pair you with the very best consultants and contractors for your project.

Our Services

We provide structural, civil and flood engineering services to leading architects, developers, planners and homeowners.


Our structural engineering services include assessments, design, finite element modeling and documentation in both AutoCAD and Revit of residential, multi-residential, commercial and community projects.


Our civil engineering team provides modelling, analysis, design and documentation, tendering, contract administration, and Superintendent duties services across a range of projects, including infill developments, land subdivisions and infrastructure works.


We provide flood and water analysis services across all sectors, including one and two-dimensional hydraulic modeling for overland flow, creek and river systems as well as flood mitigation works and stormwater quality treatment requirements.

  • “Having structural, civil and flood engineering in one place makes the design, documentation and approval process a breeze.”

    Chris Brumby, Big House Little House

  • “Fender Katsalidis worked in close collaboration with the team at Inertia on the challenging and interesting Midtown project. The project required a number of design options and changes to be assessed due to the constraints of the site. We were impressed with their ability to work flexibly, assess options quickly and overcome complex constraints to enable the momentum to be maintained. Inertia were a large part of creating a unique and ultimately successful development.”

    James Mills, Principal, Fender Katsilidis

  • “Not only is the Inertia team great to work with, but they provide a range of services suited to our special design needs. Their projects always come in ahead of schedule.”

    Martin Silec, Managing Director, Concrib