Structural Engineering

Our people, building what’s possible

Delivering structures that serve people, perform over time, and support the ambitions of the communities they’re built for.

Our Integrated Services

Consultation, collaboration, integration and innovation.

Structural engineering is where TTW began and for more than 65 years, our engineers bring deep technical rigour and genuine investment in the outcome, working alongside architects, builders and project teams as trusted collaborators from the earliest stages of design.

We believe the best structures are shaped by the people who will use them. That thinking guides every decision we make – from how we model a complex foundation to how we balance material efficiency with long-term performance. Our goal is always the same: solutions that work for your project, your community, and the decades ahead.

Get in touch

We deliver structural solutions that are efficient, buildable, and designed to stand the test of time.

  • How we work

    Our approach is built on four principles that reflect how our people operate:

    • Consultation: listening closely to understand your priorities, constraints and vision
    • Collaboration: working as one team, across disciplines, from day one
    • Integration: connecting structural thinking with the full project to improve project performance
    • Innovation: applying technology, experience and creative thinking where it makes the biggest difference

  • What we deliver

    Specialist expertise across complex, high-performance projects:

    • High-rise and long-span structures
    • Structural dynamics and occupant perception
    • Advanced structural simulation
    • Building materials selection and carbon analysis
    • Wind and seismic engineering
    • Shallow tunnelling and deep basement design
    • Adaptive reuse and asset redevelopment
    • Performance-based solutions
    • Design for manufacture and assembly
    • Temporary structuresAll di
    • Forensic engineering

Our Expertise

Offering a full-service solution means we can bring a team of specialist Structural, Civil, Traffic, Façade, Construction, Heritage, Digital and Applied Science Engineering services to any project where needed.

Our large, technically skilled resource base will guarantee you the certainty of delivery across the lifecycle of the project. 

We take pride in providing added value to our clients, and through our multidisciplinary skill base, we are able to draw on specialist input at appropriate stages to create solutions that bring your project vision to life.

Civil Engineering Civil Engineering Close collaboration and grounded expertise create civil outcomes that work for communities and clients Learn more Façade Engineering Façade Engineering Architectural ambitions become buildable façades through thoughtful partnership and technical insight. Learn more Traffic Engineering Traffic Engineering Smarter movement is created through close collaboration, clear planning and solutions shaped around real journeys. Learn more Construction Engineering Construction Engineering Complex construction challenges are simplified through practical insight, sharp sequencing and our experts Learn more Digital Engineering Digital Engineering Advanced digital intelligence unlocks seamless coordination, sharper decisions and elevated performance across every stage. Learn more Applied Science Applied Science Enablement through advanced simulation and computational design. Learn more Heritage Engineering Heritage Engineering Specialist engineering that conserves, adapts and extends the life of heritage structures Learn more Applied Sustainability Applied Sustainability Sustainability expertise seamlessly integrated to reduce carbon, improve performance and enhance long‑term value. Learn more

TTW takes pride in providing added value to our clients through our multidisciplinary skill base.

Structural Engineering Projects

Project experience

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Ready to start your journey?

We’re always looking for talented, curious people who want to make a meaningful contribution. Whether you’re a graduate, intern, or experienced professional, we’d love to hear from you.

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Spark Interact Wireframe

Wireframe Sign-Off

You are approving this page: Structural Engineering. Review the terms, draw your signature, and provide your details.

1. Scope of Approval

By signing off, you confirm the page structure, content hierarchy, section order, and information architecture are approved as presented.

2. What This Covers

  1. Number and order of pages
  2. Content sections and their hierarchy
  3. Type of content in each section
  4. Navigation structure

3. What Happens Next

The project moves into design. The approved structure becomes the foundation.

4. Changes After Approval

Structural changes after sign-off are a scope variation requiring a separate quotation.

5. Design Phase Feedback

Two rounds of design revisions are included as standard.

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Welcome to Wireframe Review

This is a structural blueprint of your website showing the layout, content hierarchy, and page flow before any visual design begins.

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Click Add Comment, then click any section or specific element (heading, image, text) to leave targeted feedback.

Sign off when you're ready

Once you've reviewed everything, click Sign Off to formally approve the wireframe with your name and signature.

Spark Interact

1. Confidentiality

This wireframe document is confidential and provided solely for your review as part of a design engagement with Spark Interact Pty Ltd. It must not be shared, distributed, copied, or reproduced without prior written consent from Spark Interact.

2. Intellectual Property

All content, structure, layout concepts, and design elements within this wireframe remain the intellectual property of Spark Interact Pty Ltd until full payment is received. Approved wireframes become the property of the client upon project completion and final payment.

3. Scope of Review

This wireframe represents the structural blueprint of your website — page layout, content hierarchy, section order, and information architecture. It does not represent the final visual design, colours, typography, or brand treatment.

4. Feedback & Revisions

You are encouraged to leave comments on any section using the feedback tools provided. Structural changes after formal sign-off constitute a scope variation and may incur additional fees and timeline adjustments.

5. Sign-Off

By completing the Sign Off process, you confirm you are authorised to approve the wireframe on behalf of your organisation, and that the page structure, content hierarchy, and navigation are approved as presented.

6. Limitation of Use

This portal and its contents are provided for client review purposes only. Any attempt to extract, reverse-engineer, or replicate the wireframe system, tools, or methodology is strictly prohibited.

7. Governing Law

These terms are governed by the laws of New South Wales, Australia. Any disputes will be subject to the exclusive jurisdiction of the courts of New South Wales.

Information We Collect

When you use the feedback and comment features in this wireframe portal, we may collect your name and any information you voluntarily provide in comments. We do not collect payment information, passwords, or sensitive personal data through this portal.

How We Use Your Information

Information collected through this portal is used solely to facilitate communication between you and the Spark Interact project team. Comments and feedback are used to inform revisions to your wireframe and design.

Data Storage & Security

Comment data is stored securely on our servers. We implement reasonable security measures including SSL encryption. Access to your project portal is restricted to authorised Spark Interact team members and your designated contacts.

Third-Party Sharing

We do not sell, trade, or transfer your personally identifiable information to external parties, except trusted service providers who assist in operating our systems and are bound by confidentiality agreements.

Data Retention

Project data including comments and sign-off records is retained for a minimum of 12 months after project completion, after which it may be archived or deleted at our discretion.

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Contact

For privacy enquiries, contact Spark Interact at info@sparkinteract.com.au or Level 5, Suite 501/84 Pitt St, Sydney NSW 2000. Phone: 1300 799 858.

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