Why it still matters
Traditional construction behaves differently from many modern systems. The guide applies to relevant work from 10 August 2026 and can help project teams avoid specifications that trap moisture or damage historic fabric.
Who this affects
Owners, architects, surveyors, building-standards professionals and trades working on older or traditionally constructed buildings.
What to do now
- Confirm whether the building is traditional before applying a standard modern detail.
- Use the guide for warrant applications submitted on or after 10 August 2026 and relevant non-warrant work from that date.
- Record the existing construction, moisture behaviour and reasons for proposed materials before work starts.
What has changed?
The Scottish Government Building Standards Division and Historic Environment Scotland have published a full guide to converting traditional buildings. It applies to work subject to building warrants submitted on or after 10 August 2026 and to relevant work not requiring a warrant from that date.
The guide brings building-standards requirements together with advice on retaining and adapting traditional fabric. It is guidance, not permission to bypass planning, listed-building consent or warrant requirements.
Our take
This is one to keep with the job information, especially where insulation, ventilation, damp or changes of use are involved. The safest specification starts with how the existing wall, roof and floor were built—not with a favourite modern product.
We read the original source, remove the ceremony and explain the practical consequence. This briefing is general information, not legal or professional advice. If the source changes, the official page takes priority.