SD Consulting Engineers

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  • Professional Certification

At SD Consulting Engineers, we provide reliable and accurate Professional Certification services to ensure your building or structural project meets all required Australian Standards and regulatory requirements. Our certifications help streamline approvals, support compliance, and give clients the confidence that their structure is safe, durable, and properly engineered.

  • RPEQ SIGN-OFF

As a Registered Professional Engineer of Queensland (RPEQ – Structural), we provide independent RPEQ sign-off and certification services for structural, seismic, and waterproofing works across residential, commercial, and remedial projects.
All designs are reviewed to ensure compliance with the National Construction Code (NCC) and relevant Australian Standards, including AS 3600 (Concrete), AS 4100 (Steel), AS 1170, and AS 1720 (Timber).

RPEQ certification offers clients the confidence that the engineering work has been carried out—or reviewed—by a qualified professional engineer registered under the Professional Engineers Act 2002 (Qld). This certification ensures your project meets statutory, technical, and safety requirements, protecting owners, builders, and certifiers from risk or non-compliance.

  • STRUCTURAL DESIGN SIGN-OFF

As an RPEQ-registered structural engineer, we deliver independent structural design verification and certification for a wide range of residential, commercial, and remedial works.

All structural reviews are completed in accordance with the NCC and the required Australian Standards (AS 3600, AS 4100, AS 1720, etc.).

  • Our Services Include:

  • Form 15 (Design) and Form 16 (Inspection) certification

  • Structural design verification and peer review

  • Certification for retaining walls, slabs, footings, framing

  • Load assessments and structural adequacy reports

  • Compliance certification for councils and private certifiers

  • Outcome:

You receive a legally valid and professionally reviewed RPEQ-certified design—supporting safety, compliance, and engineering accountability.

  • SEISMIC DESIGN SIGN-OFF

Seismic engineering requires precision, compliance, and accountability, especially for performance-based design or critical structures.
We offer RPEQ-certified seismic design and verification in accordance with AS 1170.4 (Earthquake Loads) and applicable NCC requirements.

  • Our Services Include:

  • Seismic load assessment and verification

  • Dynamic and response-spectrum analysis certification

  • Retrofitting and strengthening design certification

  • Peer review and compliance validation for earthquake resistance

  • Outcome:

Your structure receives an RPEQ-endorsed seismic certification, ensuring it satisfies required performance criteria for safety and compliance.

  • RPEQ WATERPROOFING DESIGN SIGN-OFF

Waterproofing failures are one of the most common and expensive defects in buildings. As a waterproofing design consultant and RPEQ engineer, we provide independent waterproofing system design, assessment, and certification—ensuring compliance and long-term performance from the start.

  • Our Services Include:

  • Waterproofing design review and RPEQ certification under AS 4654.1 & AS 4654.2

  • Form 15 certification for waterproofing system designs

  • Site inspections and Form 16 certification where required

  • Investigation and reporting of waterproofing failures

  • Remedial waterproofing design and specifications

  • Outcome:

Your waterproofing system is professionally designed, certified, and compliant—protecting your structure from water ingress, deterioration, and costly remedial work.

  • Ready to start your project?

Contact SD Consulting Engineers today for expert engineering solutions.

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  • About SD Consulting Engineers

SD Consulting Engineers is a Queensland-based engineering consultancy specialising in structural engineering, seismic design, and waterproofing design.
We deliver solutions that are safe, practical, economical, and fully compliant with Australian Standards.

With modern tools, proven engineering methods, and a commitment to client satisfaction, we ensure every project is completed accurately, efficiently, and on time.

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  • Why Choose Us

  • High-quality engineering solutions

  • Strong focus on client satisfaction

  • Accurate and efficient project delivery

  • Cost-effective and practical designs

  • Up-to-date engineering tools and methods

  • Commitment to safety and standards compliance

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  • TESTIMONIALS

"SD Consulting Engineers provided us with clear, practical and cost-effective structural solutions. Their team was professional, responsive and extremely knowledgeable. Highly recommended!"

"We were impressed by their attention to detail and commitment to quality. The seismic design they delivered was thorough and met all required standards. Excellent service!"

"The waterproofing design we received was top-notch and perfectly suited to Queensland’s climate. The engineers explained everything clearly and guided us through every step."

"A very reliable and professional consultancy. They worked efficiently, communicated well, and delivered the project on time. We’ll definitely work with them again."

"SD Consulting Engineers truly understands both engineering and customer service. Their practical approach helped us save time and money without compromising safety or quality."