ITU‐T's Technical Reports and Specifications 493 The ITU has a role to play in determining and facilitating the development of standards and protocols to ensure the intercommunication and interoperability of the ICT systems that make up an intelligent building which forms on of the foundations for a smart sustainable city. The ITU should continue to interact with other bodies and industry groups to ensure that the required standards for intelligent and sustainable buildings are developed. These standards need to be developed in concert with other \"smart sustainable city\" standards to ensure compatibility and seamless adoption.