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Since its introduction in 2022, the Approved Document Part O has become an important aspect of the Building Regulations for newly constructed domestic properties. Simplified Method The default route to complianceLooks only at floor area, orientation, glazing area & openable area of glazingDemonstrates a simple pass or failCannot factor in mitigationsDynamic Thermal Model (CIBSE TM59)Alternative, more

As building regulations continue to evolve, ensuring optimal air quality and energy efficiency has never been more important. Mechanical Ventilation Commissioning (often referred to as Ventilation Testing) plays a key role in meeting Building Regulation Part F compliance, confirming that ventilation systems are performing effectively and delivering the intended air flow rates.At UK Building Compliance,

The Home Energy Model is set to come into effect in 2026, following the publication of the Future Homes Standard in Autumn 2025. The Future Homes Standard will replace the current version of Part L 2021, mandating operational net-zero for dwellings. Whilst the Home Energy Model will eventually replace SAP as the calculation methodology, it is the

With the Future Homes Standard set to be published in Autumn 2025, the Government are also introducing a new calculation methodology to support it. To provide a smoother transition, it will initially run alongside SAP. However, the Home Energy Model aims to be a more advanced, modular and future-proofed methodology. It is being introduced in order to