A clear five-step path that takes you from eligibility through design, approvals and construction, with STG Building guiding every stage.
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Step one
Let’s get started
Inquiry and eligibility. To help determine if a granny flat can be built on your property, we will require the following documents:
A Section 149 (2) Planning Certificate from your local council
A sewer diagram for the property
A title search of the property
Confirmation that your property is at least 450m2 and 12m wide
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Step two
Assessment
Contour survey and design options. Once we have reviewed your documents, we will request a small fee to begin preliminary investigation and order a contour survey which will outline the parameters of your new build. Once this becomes available to us, our granny flat consultant will then meet with you to discuss designs that are best suited to your block and comply with statutory codes and regulations. Your concepts and inclusion options will also be discussed.
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Step three
Design and quotation
Design confirmation and preliminary tender. Once you have selected your layout and inclusion package, our design team will provide you with a footprint of your home on your property. Our sales team will also provide you with a preliminary tender for the building works. Once the tender has been signed and accepted, our design team will then draw up a full set of detailed architectural plans for your new granny flat, including floor plans, elevations and specifications. We will work with you until you are happy with your design and no more changes are required.
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Step four
Contract and approval
Application submission and pre-construction. Once you have signed off on the final drawings, the accompanying documentation required for submission to the private certifier will be ordered. This includes hydraulic design, structural design, BASIX energy assessment and Sydney Water quick check. Once we receive all consultant documentation, the application is lodged with the private certifier for a 10 day certification process, unless submission to local council is required if the design does not meet housing code regulations. During this stage, our team will prepare your final contract and guide you through colour selections for your new building. Once you have final approval and contracts have been signed and exchanged, it is time to get construction underway.
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Step five
Construction
Let’s build. Your allocated supervisor will make contact with you and advise you of your project start date, which is usually within 10 days of receiving final approval. The construction process is approximately 10 to 12 weeks, depending on construction methods, the complexity of the site and weather conditions.
Ready to begin?
Start your granny flat journey
Share a few details and we’ll help you check eligibility and take the next step with confidence.