Ravelin Sports Centre has set the standard for ultra-low energy sports facilities. Through its compact shape, efficient external shell, abundant natural light and clever ventilation, the building is designed to minimise heat loss and energy use. We collaborated with sustainability consultants Max Fordham and achieved a BREEAM ‘Outstanding’ rating – the highest accreditation for environmental performance in building design. The centre houses a 25m swimming pool, sports hall and more. The uninterrupted glazing around the ground floor reveals an outside view of the indoor facilities, creating an open and inviting environment and encouraging people to integrate fitness into their everyday lives.