Standard Assessment Procedure (SAP)

Standard Assessment Procedure (SAP) is the UK Government’s approved method for evaluating the energy performance of residential buildings. It’s essential for demonstrating compliance with Part L of the Building Regulations and for producing Energy Performance Certificates (EPCs) for new builds.

At Mainer Associates, our experienced SAP assessors support projects ranging from single homes to large apartment blocks. We work closely with design teams to:

• Ensure compliance with Part L1A (new dwellings) and Part L1B (existing dwellings)

• Optimise building fabric and systems for energy efficiency

• Deliver cost-effective solutions that meet planning and sustainability targets

We bring technical expertise and practical insight to help clients achieve energy compliance with confidence.