House Extension Structural Engineering in Brisbane

House Extension Structural Engineering in Brisbane

Ostanes Engineering provides certified structural design solutions specifically engineered to address the unique environmental and soil conditions prevalent in Brisbane. We deliver robust engineering assessments and documentation for residential extensions.

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Structural Engineering Challenges for Extensions in Brisbane

Extending heritage or pre-1946 character homes in Brisbane, or adding a second storey, necessitates sophisticated load transfer systems and careful underpinning of existing shallow footings. Structural engineers must rigorously assess existing load-bearing capacities and engineer compliant tie-in details for integrating new construction with older timber-framed structures. This is especially critical on reactive clay sites, as stipulated by AS 2870, to safeguard against differential settlement and structural compromise.

Streamlined Approvals with Brisbane City Council

Ostanes Engineering delivers comprehensive documentation to ensure compliance for your residential extension under Brisbane City Council jurisdiction:

  • Detailed structural drawings for new and altered elements.
  • Form 15 certification confirming compliance with the National Construction Code.
  • Specialist footing underpinning design for existing foundations requiring modification.
  • Load-bearing removal details for openings and significant structural alterations.

Our comprehensive documentation facilitates the approval process for all residential extension projects.

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Designed to Strict Australian Standards (AS)

All structural designs for residential extensions are certified against the National Construction Code (NCC). We adhere to the following key Australian Standards:

  • AS 1684.2-2010: Residential Timber Framed Construction – Non-cyclonic areas.
  • AS 2870-2011: Residential Slabs and Footings Construction.
  • AS 4100-2020: Steel Structures.
  • AS/NZS 1170.1:2002: Structural Design Actions – Permanent, imposed and other actions.

Servicing Brisbane and Surrounding Suburbs

We specialize in character home extensions and second-storey additions across Paddington, Ashgrove, and Bardon. Our in-depth knowledge of these areas ensures seamless structural integration and adherence to local regulatory requirements for your project.

Ostanes Engineering offers specialist structural design services across Brisbane and its adjacent communities.

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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!
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