CIBSE TM59 Overheating Assessments Ltd operates within the building performance and environmental consultancy sector, specialising in overheating assessments for new developments and refurbishment projects. The company supports compliance with residential overheating standards and provides detailed dynamic thermal modelling to assess occupant comfort. Its services typically include compliance reporting, design consultancy, and performance analysis, aligned with practices in sustainable building design. The organisation helps improve comfort, environmental performance, and regulatory compliance across modern residential developments.