# QLD Form 15 (/docs/form-guides/building/qld/qld-building-form-15-design-spec)



Use this guide when you fill **Form 15 - Compliance Certificate for Building Design or Specification** in Tradie Forms. The web form follows the Queensland PDF layout for this certificate.

[Open Form 15](/forms/qld-building-form-15-design-spec) after the building certifier has appointed you for the design or specification.

<Callout type="info" className="docs-callout-info my-4">
  Form 15 certifies a building design or specification. It is not the inspection
  certificate for installed work. Use the extent, basis, and references to make
  the certified design easy to identify.
</Callout>

## Before you start [#before-you-start]

* Confirm you are the **appointed competent person** for design-specification work on this job.
* Have the **property address**, **lot and plan**, and **local government area** when the design applies to a specific site.
* Have the **building certifier reference number** and **building development application number**.
* Be ready to describe the **aspect/s certified**, the **basis** for certification, and any **reference documentation**.

## In the app [#in-the-app]

<span id="property" />

## Property [#property]

Use **address search** for the street address, or type street, suburb, state, and postcode manually.

Add **lot and plan** details from the title or rates notice, and the **local government area**.

Generic designs such as pools or patios may not need a property description.

<span id="extent" />

## Extent [#extent]

Describe the **aspect/s of work** covered by this certificate, for example all structural aspects of the steel roof beams.

<span id="basis" />

## Basis [#basis]

Explain the **basis for the certificate** and which standards, codes, or publications you relied on.

<span id="references" />

## References [#references]

List **reference documentation**, such as numbered structural engineering plans.

<span id="certifier" />

## Certifier [#certifier]

Enter the **building certifier reference number** and &#x2A;*building development application number (in full)**.

<span id="competentPerson" />

## Competent Person [#competent-person]

Enter your **name**, **company**, **contact person**, **phone numbers**, **email**, and **postal address**.

Add **licence or registration** details when they apply.

Save competent person details as a **saved detail** on Solo or Team to prefill your next Form 15.

<span id="declaration" />

## Signature [#signature]

**Sign** and enter the **date** as the individual assessed and appointed by the building certifier.

## Check before download [#check-before-download]

1. The property section is complete when the design is site-specific.
2. The extent identifies the exact design or specification being certified.
3. The basis names the tests, standards, codes, or publications relied on.
4. Every drawing, calculation, schedule, or specification is listed with its current revision.
5. The certifier reference and development application number match the job.
6. Your name, relevant licence or registration, signature, and date are complete.

<span id="after-export" />

## After download [#after-download]

* Give the signed PDF and listed reference documents to the building certifier.
* Keep a copy for your records.

For worked examples, read the [Queensland Form 15 design and specification guide](/resources/qld-form-15-design-specification-certificate-guide).