An SIA 380/1 energy report is often required as part of a building permit application (new build or renovation), to document the building’s energy performance.
As requirements can vary by canton and project type, the exact scope should be confirmed with the relevant authorities or the project client. [To complete: local requirements]
What the report should enable
- Justify the building’s energy performance (assumptions, calculations, results).
- Clearly document technical choices (envelope, systems, control strategy).
- Provide a coordination baseline across architecture and technical trades.
Common pitfalls
- Undocumented assumptions (envelope or usage).
- Lack of coherence between envelope and systems (targets vs solutions).
- Deliverables that are hard to use (tables without context, missing documents).
Quick starting checklist
Prepare:
- building type and usage (residential, commercial, renovation, etc.),
- goals (permit, Minergie, subsidies),
- timeline and canton.