Engineering Guides

Expert answers to common questions about structural engineering, civil works, stormwater design, and temporary propping in Sydney. Learn when you need an engineer and what to expect.

Do I need a structural engineer to remove a load-bearing wall in NSW?

Essential guide on load-bearing wall removal requirements, certification, and the engineering process in NSW.

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What is On-Site Detention (OSD) and when does a Sydney council require it?

Complete explanation of OSD requirements, design standards, and when your Sydney development needs detention.

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Who designs and certifies temporary propping and shoring in Sydney?

Guide to temporary propping design, certification requirements, and finding the right engineer in Sydney.

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When does a building legally need a structural engineer's certification in NSW?

Understand NSW building codes, certification requirements, and when structural engineering is mandatory.

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Do I need a structural engineer to certify a steel mezzanine in NSW?

Steel mezzanine design, certification, and structural engineering requirements in NSW.

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Do I need an engineer for an OSD tank under a driveway?

OSD tank design under driveways, structural considerations, and engineering requirements.

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What drives the cost of temporary propping / back-propping design in Sydney?

Factors affecting temporary propping costs, design complexity, and budget planning in Sydney.

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Hydraulic vs structural engineer for stormwater — which do I need for my Sydney DA?

When to use hydraulic vs structural engineers for stormwater design and development approvals.

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Temporary works and propping design requirements for a Sydney basement

Basement excavation, temporary works design, propping requirements, and engineering standards.

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Facade retention and shoring: what a Sydney builder needs before demolition

Facade retention design, shoring requirements, and engineering certification for demolition in Sydney.

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