Delivering compliant, efficient residential buildings through robust SAP analysis.
SAP (Standard Assessment Procedure) is the UK Government’s approved methodology for assessing the energy performance of dwellings and demonstrating compliance with Building Regulations Part L.
MES Building Solutions provides SAP calculations, design-stage advice, and EPC certification, supporting project teams from early concept through to completion. Our approach ensures compliance is achieved efficiently, while also helping optimise energy performance, carbon emissions, and fabric design.
We work closely with developers, architects, and contractors to de-risk compliance, identify cost-effective design improvements, and streamline the approval process.
Fabric-First Optimisation
Support for building fabric specification, insulation, thermal bridging, and airtightness strategies
SAP Calculations
Accurate SAP assessments for planning, design-stage, and as-build submission, aligned with current Part L requirements
Energy & Carbon Analysis
Guidance on dwelling emission rates and energy demand reductions to meet regulatory targets efficiently
EPC Production
Production of compliant Energy Performance Certificates and lodgement on approved registers at completion
Why SAP & Part L Compliance Matters
SAP is more than a regulatory requirement, it is a key tool in delivering energy-efficient, low-carbon homes.
By addressing SAP early in the design process, project teams can avoid costly redesigns, reduce risk at building control stage, and achieve better long-term performance outcomes.
Our SAP Support Process
01
Feasibility Review
Early-stage appraisal of compliance strategy, risks, and opportunities
02
Design Development
SAP modelling and iterative design advice to optimise performance
03
Compliance Review
Detailed assessment against Part L targets (DER/TER) and final design-stage outputs
04
Completion & EPC
As-built SAP calculations and EPC production to support final sign-off
Related Compliance Services
Additional services and guidance on the topic: