Knockdown Rebuild Structural Engineering in Brisbane

Knockdown Rebuild Structural Engineering in Brisbane

Ostanes Engineering delivers certified structural solutions for knockdown rebuilds, meticulously engineered to address Brisbane’s specific soil conditions and foundational requirements. Our designs ensure structural integrity and compliance for your new build on existing land.

Request an Engineering Quote

Structural Engineering Challenges for Knockdown Rebuilds in Brisbane

Knockdown rebuild projects in established Brisbane suburbs frequently encounter issues with uncompacted fill from former structures or demolished pools. Structural engineers must mandate controlled fill compaction (AS3798) and design deep bored piers or suspended slab systems. This necessitates specialized engineering solutions, as further detailed in our residential extension structural design services. These systems bypass disturbed soils, providing secure anchorage into competent bedrock or natural reactive clay strata, as defined by AS2870.

Streamlined Approvals with Brisbane City Council

Ostanes Engineering provides the precise documentation you require for knockdown rebuilds under Brisbane City Council jurisdiction. Our deliverables guarantee compliance and include:

  • Detailed structural drawings for all building elements.
  • AS2870 site classification report outlining soil conditions.
  • Earthworks and compaction specifications for sub-grade preparation.
  • Form 15 certification for structural component conformity.

Request an Engineering Quote

Designed to Strict Australian Standards (AS)

All structural designs for knockdown rebuilds are certified against the National Construction Code (NCC). Our engineering adheres to rigorous Australian Standards, specifically:

  • AS2870-2011: Situs Classification and Foundations for Residential Slabs and Footings
  • AS3798-2007: Guidelines on Earthworks for Commercial and Residential Developments
  • AS3600-2018: Concrete Structures
  • AS1684.2-2010: Residential Timber Framed Construction

Servicing Brisbane and Surrounding Suburbs

Ostanes Engineering specializes in engineering secure foundations for knockdown rebuilds on previously disturbed sites across Holland Park, Coorparoo, and Tarragindi. Our deep understanding of local site conditions ensures robust structural outcomes. Our expertise extends throughout Brisbane, providing comprehensive structural design services in Brisbane for all project types.

Request an Engineering Quote

Explore Brisbane Services

What Our Clients Say

Excellent
Ostanes Engineering4.9
Based on 99 reviews
brett I.
2 weeks ago
The work that Ostanes Engineering has done are incredible, my job was urgent and they accommodate for my needs. I highly recommend them for any work that needs doing.
Katia
4 months ago
Ostanes carried out a structural integrity inspection in our home: Dr Shoja was very knowledgeable and thorough. He explained everything he was looking at and why; as well as given us lots of practical advice which was related to structural integrity and otherwise.
Rebecca T.
6 months ago
Ostanes were great right from the outset - they responded very promptly even on the weekend and we had the inspection and structural engineering report within two days of first contacting them. The admin staff and engineer were both very friendly, helpful and communicative - we'd be happy to use them again. Thank you!
Response from the owner:Thank you so much, Rebecca! Weโ€™re really glad we could assist you quickly and that your experience with both our admin team and engineer was a positive one. We always aim to make the process smooth, clear, and timely, so itโ€™s wonderful to hear that reflected in your feedback. We truly appreciate your kind words and would be more than happy to help you again anytime. ๐“๐ก๐š๐ง๐ค ๐ฒ๐จ๐ฎ ๐Ÿ๐จ๐ซ ๐œ๐ก๐จ๐จ๐ฌ๐ข๐ง๐  ๐Ž๐ฌ๐ญ๐š๐ง๐ž๐ฌ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ข๐ง๐ !
Adrian R.
7 months ago
Ostanes have been fantastic to deal with from start to finish. Prompt turnaround times, great correspondence and advice. A small project for a Home Builder for a bathroom extension was made easy by their engineering know how and support every step of the way. Would highly recommend. Thanks to the whole team!
Response from the owner:Thank you, Adrian! Weโ€™re glad we could support your project with clear advice and quick turnaround. We appreciate the recommendation and look forward to helping again anytime! ๐Ž๐ฌ๐ญ๐š๐ง๐ž๐ฌ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ข๐ง๐ 
Liz A.
9 months ago
We had a underpinning company quote us $10,000+ to fix an issue with our house foundation. I wanted to get a 2nd opinion and that of a structural engineer because i didn't want to pay for something i didn't need. Shoja was very knowledgeable and thorough. He checked our entire house for structural issues and concluded that the house was fine and didn't need underpinning!! They also don't carry put work that they recommend to avoid conflict of interest. I am so glad we found them, it has saved us tens of thousands of dollar of unnecessary work
Response from the owner:Lisan, weโ€™re really pleased we could help you get a clear and independent assessment. Dr. Shoja was happy to take the time to check everything thoroughly, and itโ€™s great to hear the outcome saved you from unnecessary work and expense. If you ever need guidance again, weโ€™re here to help anytime! ๐Ž๐ฌ๐ญ๐š๐ง๐ž๐ฌ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ข๐ง๐ 
Johanna D.
9 months ago
Great experience with Ostanes. Shoja was extremely knowledgeable and helpful. Pricing was fair for the excellent quality service.
Response from the owner:Johanna, weโ€™re glad to hear the service and support hit the mark for you. Thank you for recognizing Dr. Shojaโ€™s expertise and the value of our work โ€” we truly appreciate it! ๐Ž๐ฌ๐ญ๐š๐ง๐ž๐ฌ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ข๐ง๐ 
Daniel B.
11 months ago
Absolutely fantastic to deal with. Very promptly dealt with our engineering needs.
Response from the owner:Thanks so much! Glad we could help quickly and get everything sorted for you. Appreciate you choosing us! โ€” Ostanes team
Kirby H.
11 months ago
Shoja really saved my skin with such a quick turnaround. I was buying a house and had some concerns about a crack in the render. He went next day and got me the report 2 hours later. The sellers agent met him there and Shoja abstained from telling him any unnecessary information. I would 100% use their services again and recommend them to anybody.
Response from the owner:Thank you for sharing your experience! We're so glad Dr. Shoja could assist you quickly and effectively during such an important decision. Providing fast, discreet, and professional service is what we strive for, especially in time-sensitive situations like yours. We truly appreciate your recommendation and look forward to supporting you again whenever needed!
Yanni M.
12 months ago
Incredible service. They reviewed our new home last minute following a building and pest recommendation and provided professional advice and pragmatic solutions. Great value for service, very friendly and they felt very trustworthy. Cannot recommend more strongly for a structural engineering consult.
Response from the owner:Thank you for your kind words! We're thrilled to hear that you were satisfied with our service. Our team strives to deliver professional and timely solutions. If you need any assistance in the future, feel free to reach out!
Nathan H.
12 months ago
Dr Shoja and his team are friendly, professional and very responsive. Ostanes was able to come on site and provide their assessment with a very short turnaround and have been very helpful even after the job was done. No hesitations to engage with them again
Response from the owner:Thank you so much for your thoughtful review! We're delighted to hear that you had a positive experience with Dr. Shoja and the team. Providing timely, professional, and ongoing support is something we truly value at Ostanes. We appreciate your trust and look forward to working with you again in the future!
Speak with an Engineer