Self Build Blog

What is Form Q- and why does it matter for your self build project (Scotland)

Written by Emma Corfield | 15.7.2025

If you’re planning to build your own home in Scotland, you’ll quickly become familiar with various building regulations and certification forms. One that often catches self-builders off guard is Form Q – a small but crucial document that plays a big role in getting your dream home signed off and ready to move into.

In this article, we explain Form Q, when it’s needed, and why working with a knowledgeable architect and structural engineer team (like ACA and our trusted partners) is essential to ensuring your project runs smoothly to completion.

WHAT IS FORM Q?

Form Q is officially known as the “Notice of Finalisation of Design Details”. It’s part of the building warrant process in Scotland and is required under the Building (Scotland) Regulations.

Put simply, it confirms that certain structural or specialist elements of your building – which couldn’t be fully designed at the time of your original warrant application – have now been completed and checked. These are often complex parts of the building that are designed by subcontractors or specialist manufacturers later in the build.

Typical items that require Form Q include:

  • Timber trusses
  • Steelwork connections
  • Precast concrete floors or stairs
  • Piling or vibro stone columns
  • Glazing systems or protective balustrades

These elements are listed in Schedule 1 of the Certificate of Structural Design. The form ensures that once these items are fully detailed, a qualified certifier (usually your structural engineer) reviews and signs them off as compliant with the original design intent and current regulations.

WHY IS FORM Q IMPORTANT?

Form Q is a legal requirement. Without it, you cannot submit a valid Completion Certificate for your new home – meaning the local authority won’t sign off your build, and you won’t legally be allowed to move in or sell the property.

The form must be signed by an Approved Certifier of Design and their Approved Body. It confirms that the performance requirements of the original building warrant have been met and the detailed elements have been correctly incorporated into the final construction.

Delaying or missing this form can cause significant issues near the end of your project, including:

  • Delays in completing the project
  • Additional engineering costs
  • Potential rework if designs are not compliant
  • Legal or financial implications if the building is occupied without acceptance

HOW DOES FORM Q FIT INTO THE PROCESS?

Here’s a typical self-build timeline where Form Q comes into play:

  • BUILDING WARRANT STAGE
    Your structural engineer submits a design that includes a list of elements to be finalised later (Schedule 1).
  • WARRANT APPROVED
    The local authority accepts the design, noting that Form Q will be needed before completion.
  • CONSTRUCTION PHASE
    Specialist items like trusses, stairs, or glazing are procured and designed by manufacturers or subcontractors.
  • DESIGN FINALISATION
    These detailed designs are reviewed by the structural engineer or certifier.
  • FORM Q SUBMITTED
    Once satisfied, the certifier signs and submits Form Q to the local authority.
  • COMPLETION CERTIFICATION ACCEPTED
    With Form Q on file, the authority can approve your Completion Certificate, and you can legally occupy your home.

DO YOU NEED MULTIPLE FORM Q'S?

If your project involves multiple homes or phases, such as a self-build plot development, you may need to submit interim Form Qs as each home is completed, followed by a final one to close out the development.

HOW ALLAN CORFIELD ARCHITECTS CAN SUPPORT YOU?

At Allan Corfield Architects, we’ve supported hundreds of self-builders through the Scottish warrant process. We work closely with experienced structural engineers and certifiers to:

  • Identify early which parts of your home will need Form Q
  • Coordinate with specialist suppliers to keep your project on track
  • Ensure that all required design checks are completed and signed off without delays
  • Submit all necessary documentation to help you secure your Completion Certificate smoothly

Form Q may seem technical, but for self-builders, it can be the difference between a smooth sign-off and a stressful final stretch. With the right team, it's just another step on the journey to your dream home.

Get in touch with our team if you would like to talk about how Allan Corfield Architects could support you in successfully designing your dream home. 

 
 
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