Mark Skelly is a multidisciplinary building environment and services engineer with over 30 years’ experience. He leads work at the award- winning practice, Skelly & Couch, on design innovation, sustainability, decarbonisation masterplans and net zero carbon design. Mark has acted as a technical advisor for a number of clients, including the Design Council, and tutors at the University of Bath as Royal Academy of Engineering Visiting Teaching Fellow. He was awarded the IMechE Construction and Building Services Division Prize in 2015.