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Construction professionals reviewing drawings for a Part L energy assessment

Part L Compliance

At Baytimized, we provide expert consultancy services for Part L compliance assessments, ensuring commercial buildings meet UK Building Regulations and achieve optimal energy performance. Our approach goes beyond basic compliance, offering strategic insights that enhance efficiency, reduce operational costs, and future-proof assets.

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Comprehensive Part L Assessments

We specialise in evaluating buildings against Part L of the Building Regulations, which sets energy efficiency and carbon emission standards for new and existing buildings. We specialise in non-domestic compliance (Approved Document L Volume 2). Our methodology is tailored to each project’s complexity:

  • Simplified Building Energy Model (SBEM) – Used for standard commercial buildings, this method aligns with the National Calculation Methodology (NCM), providing a streamlined route to compliance.

  • Dynamic Simulation Modelling (DSM) – For complex or high-performance buildings, we employ hourly dynamic simulations to analyse energy demand, system efficiency, and regulatory compliance in greater detail.

By leveraging industry-leading software such as IES VE and DesignBuilder, we assess energy consumption patterns, building envelope performance, and HVAC system efficiency.

Minimum Energy Efficiency Standards (MEES) Reporting

With increasing regulatory pressure on landlords and developers, we offer MEES assessments to ensure properties meet the minimum EPC rating requirements. Our services include:

  • Detailed energy audits to identify areas of non-compliance

  • Scenario analysis to explore cost-effective energy efficiency upgrades

  • Tailored improvement strategies that align with both regulatory demands and commercial objectives

Why Choose Baytimized?

• Regulatory Expertise – We stay ahead of evolving energy legislation, ensuring seamless compliance with UK standards.
• Optimised Design Solutions – Beyond compliance, we provide actionable insights to improve operational efficiency and long-term sustainability.
• Data-Driven Approach – Our use of advanced simulation tools allows us to fine-tune building performance for maximum energy savings.

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Whether you're designing a new development or seeking compliance for an existing building, Baytimized delivers specialist Part L consultancy that enhances both compliance and performance.

Need Part L compliance for your project? Get a fee proposal within 48 hours.​

Request a fee proposal →

Head Office

The typewriter building, 140 Borough High St, London SE1 1LB

Email

Company No.

16217951

Baytimized

© 2026 Baytimized Ltd

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