What Is a Form 15 and When Do You Need One?
Understanding Form 15 in Queensland
If you are building, renovating or managing a development in Queensland, you have probably heard the term Form 15. It is one of the most commonly requested engineering documents in the approval process and is often required before construction can begin. But many homeowners, builders and developers are still unsure about what it actually covers.
At JC Engineers, we issue Form 15 certificates every week. Here is a clear explanation of what it is, why it matters, and when you need one.
What Is a Form 15?
A Form 15 is a Certificate of Technical Design issued by a qualified and competent person. In most cases, this is a Registered Professional Engineer of Queensland (RPEQ). The Form 15 confirms that the design for a building, structure, system or component complies with the National Construction Code, relevant Australian Standards and local council requirements.
It verifies that the design work is technically sound so builders and certifiers can rely on it during construction.
When Do You Need a Form 15?
You will typically need a Form 15 when:
You are lodging building approval documents with a certifier
New engineering designs or drawings are being submitted
A project requires specialist technical advice or design input
You are using a pre-fabricated or proprietary building system
A certifier needs confirmation that a specific design meets compliance requirements
Common examples include structural designs, retaining walls, slabs, beams, roof upgrades, stormwater systems, steel structures, and more.
Why Is a Form 15 Important?
A Form 15 protects everyone involved in the project by confirming the design is compliant before construction starts. This reduces the risk of delays, rework, disputes, failed inspections and costly mistakes.
It also ensures that builders are constructing exactly what the design intends.
What Is Included in a Form 15?
A Form 15 issued by JC Engineers will include:
Confirmation of compliance with the NCC and Australian Standards
Details of the engineer and their RPEQ registration
Drawings or design documents referenced in the certificate
Any conditions or requirements that must be followed during construction
How JC Engineers Helps
Our team provides fast, compliant Form 15 certificates for residential builds, renovations, commercial projects and council-driven works. We ensure your designs are fully reviewed and signed by an RPEQ so your project can move ahead without unnecessary delays.
If you need a Form 15, submit your drawings to us online and our engineering team will take care of the rest.
