Knowledge Centre

Insights & Technical Guidance

Technical articles, case studies and regulatory guides from the Vision Energy team.

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SAP calculations construction project
Regulation Aug 3, 2026

What Are SAP Calculations? A Complete Guide for UK Projects

SAP calculations assess the predicted energy performance of residential buildings. They are used to demonstrate compliance with Part L of the Building…

Case Study Apr 9, 2026

Case Study: SAP Calculations for a Low-Energy Residential Infill Development

Case Study: SAP Calculations for a Low-Energy Residential Infill Development Project Overview This project involves the construction of four new-build, three-storey terraced…

Case Study Feb 9, 2026

Case Study: Sustainable Retrofit Strategy for an Educational Campus in Milton Keynes

Project Summary This project involved the retrofit and extension of two former employment buildings to deliver modern educational and leisure facilities for…

Case Study Oct 1, 2025

Case Study: Energy Statement for a Low-Energy Residential Development

We prepared the SAP calculations and energy strategy for a new 17-dwelling residential development, achieving a 71% reduction in regulated CO₂ against…

Industry Insight Apr 19, 2025

The Benefits of Completing SAP Calculations at Design Stage

For developers and architects in the UK, the importance of SAP calculations cannot be overstated. SAP calculations (Standard Assessment Procedure) play a…

Industry Insight Apr 9, 2025

Meeting The London Plan Energy Statement Requirements: A Guide to Planning Compliance

“The London Plan sets forth stringent requirements for carbon emission reduction and energy efficiency in new developments. This comprehensive guide outlines the…

Regulation Apr 5, 2025

New Part L & O Building Regulations Come Into Force

As of Wednesday the 15th of June 2022 the new Approved Documents L (conservation of fuel and power) and O (Overheating), have…

Regulation Mar 13, 2024

What are SBEM calculations?

SBEM Calculations (simplified Building Energy Model) are calculations carried out to any new build, extended, or refurbished commercial property over 50m2, reviewing and/or…