SAP for Extensions
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Building Regulations Compliance
If you’re planning an extension, SAP calculations under Part L1B may be required, particularly if glazing exceeds 25% of the new floor area. These assessments ensure your extension is energy efficient and meets planning approval requirements.
Our Support
We aim to achieve compliance with minimal changes to your design, saving you time and cost. Our service includes:
- Desktop calculations – no site visit required
- Liaison with your Building Control Officer if needed
Required Documents:
- Existing and proposed plans/elevations
- Construction and building services details
