Need a Certificate of Compliance for Past Works?
Retrospective Certificates of Compliance
If you’ve built something without a permit — don’t panic. We help homeowners, builders, and trades get retrospective engineering sign-off with zero judgment.
What is a Retrospective Certificate of Compliance?
Understand the "what, when, and why" of it all
- Formal certificate issued under Regulation 126
- Required for: any works completed outside of regulatory frameworks
- Often needed when selling or regularizing with council
- Confirms structure is compliant and safe
- Can be done even if you have no drawings or approvals
Why Clients Trust Structura Engineering Inspections
No runaround. Just expert help from engineers who’ve seen it all.

Engineer-Signed Reports
All inspections by registered structural engineers

No Judgment, Just Help
We understand real-world building scenarios

Fast Turnaround
Most reports are completed within 5-10 business days

Clear Guidance
If non-compliant, we explain exactly how to fix it
What’s Included in Your Inspection
Our process is simple: inspect, assess, explain, and guide
- Visual inspection of structural elements
- Check footing integrity, load paths, anchoring
- Identify compliance or need for rectification
- Include photos and expert summary
- Final certificate (if compliant) or itemised rectification list
Transparent Pricing
One flat fee. No upsells. No surprises. Just structural clarity.
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15-minute Phone Consultation FREE!!!
Book a free 15-minute call with a qualified structural engineer. Expert advice to help you figure out the right service for your situation.
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Retrospective Compliance Inspection & Report From $1200 + GST
Includes site inspection, engineer review, and certificate Add-ons: Drafting support, rectification plans, council liaison Final quote confirmed after reviewing your structure
Google Reviews
What Our Clients Say
EXCELLENT Based on 4 reviews Posted on DESIRE ETIENNETTE2025-11-28Trustindex verifies that the original source of the review is Google. Wayne was very patient and understanding He took his time to assess the job and gave a thorough explanation and recommendation Job well done Will use his services againPosted on Vijay B2025-11-17Trustindex verifies that the original source of the review is Google. We urgently required a property inspection by a Structural Engineer to make informed decisions before bidding at an auction. After submitting an online query, Warren Nguyen from Structura Engineering Inspections promptly contacted me and arranged to inspect the property with me on the same day, despite the short notice. Warren carried out a thorough inspection, demonstrating exceptional attention to detail. He patiently listened to all my questions and provided comprehensive answers, reflecting his excellent communication skills, strong competency, and deep knowledge of Structural Engineering. Importantly, his responses were unbiased, which highlighted his professionalism. I would also like to extend my gratitude to Brad Magocha for his outstanding service and communication skills.Posted on Saraf Jilani2025-11-04Trustindex verifies that the original source of the review is Google. Warren had been very helpful. Highly recommend their services.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Structura Engineering Inspections is a division of Guardian Consulting Engineers — trusted by hundreds of clients across Victoria
Book an Inspection or Consultation
Ask us anything. Or send your details and we’ll guide you step by step.
Retrospective COC Frequently Asked Questions
Answers to the questions our engineers hear most often
We’ll clearly explain what’s wrong and how to fix it — no grey areas.
Yes, we do it all the time.
Usually within 5 business days, faster if urgent.
