Key Highlights:

• Scope and Application: BS 40102-1:2023 applies to non-domestic buildings, offering an evaluation and rating system aimed at improving IEQ to support the well-being of occupants, including staff, visitors, tenants, and customers. It provides actionable insights for buildings of all sizes and sectors, guiding renovations, new developments, and existing building assessments.
• Comprehensive Evaluation System: The standard introduces a multi-layered evaluation system encompassing air quality, light quality, thermal comfort, and acoustic and soundscape quality. This holistic approach ensures a thorough assessment of all critical factors affecting indoor environments, facilitating the identification of improvement areas and benchmarking performance.
• Guidance on Measurement and Assessment: Detailed guidance is provided on conducting scope assessments, measurement-based assessments, and occupant surveys. These methodologies collectively enable the accurate gauging of IEQ and the gathering of vital data for analysis and ongoing monitoring.
• Innovative Assessment Methodology: The standard outlines a novel assessment methodology comprising several discrete activities, including scope assessment to determine review extent, measurement-based assessment for IEQ parameter recording, and occupant-based surveys to capture user experiences.
• Focus on Health and Well-being: Emphasising the health and well-being of building occupants, BS 40102-1:2023 addresses critical IEQ factors such as air quality, including pollutants and ventilation; light quality, emphasising illumination and glare; thermal comfort, focusing on temperature and humidity; and acoustic and soundscape quality, assessing noise levels and appropriateness.
• Maintenance and Improvement: Acknowledging the importance of maintenance, the standard encourages the establishment of regimes ensuring system efficiency and environmental quality, thus contributing to the building’s overall performance and occupant satisfaction.

BS 40102-1:2023 represents a significant advancement in the standardisation of non-domestic building performance evaluation, providing a comprehensive framework for enhancing indoor environmental quality. By adopting this standard, organisations can achieve improved occupant well-being and productivity, alongside operational cost savings and enhanced building attractiveness. This document serves as an invaluable resource for professionals across design, construction, facilities management, and more, striving to meet the evolving well-being needs of building occupants.

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