Bridging the performance gap will be critical to achieving and realizing ambitious targets for reducing energy consumption and emissions in the building sector. How do you determine the limits and reserves of an operating building? Many companies and researchers are working on this problem The BIM-based approach allows you to work with a digitized object (smart building). After a surge of interest in the use of BIM technology in design and construction, it becameclear that, on the one hand, only 5% of real estate companies use such a powerful asset as the BIM model in building operation (maintenance), and on the other hand, the costs of Operation and Maintenance (O&M) far exceed those of any previous phase, averaging 70% of total life-cycle costs. Wireless Internet of Things technologies (LoRaWAN) are opening up opportunities to connect the static Building and Instructional Design (BIM) model with a dynamic data flow (IoT) model for: - Digitize analog equipment - Diagnose control system failures and treat them locally - Manage both large and small engineering ecosystems, scaling rapidly - Build up the overall intelligence of an individual building with localized examples in the  form of narrow AI - flexibly respond to customer demands and, on the other hand, manage their new experiences for responsible resource consumption - Establish sustainable building performance Challenge areas that were pre-defined from a range of industries dedicated to: Air Quality, Cleantech, Climate Change, Climate Emergency, Cooling Systems, Decarbonisation, Decentralized Energy, Dietary Footprint, Ecology, Energy Efficiency, Energy Storage, Energy Transition, CO2 Emissions, Green cities, Smart Devices, Smart Environments, Green Deal, Green Districts, Green Spaces, Heating Systems, Landscaping, Low Emissions Tech, Mitigation, New Energy Models, Recycling, Regenerative by design, Asset Management, BIM, Building Automation, Building Simulation, Built Environment, Community Facilities, Renewables, Smart Grids, Smart Infrastructures, Smart Street Lighting, Smart Utilities, Sponge Cities, Sustainable Garbage Processing, Sustainable Tech, Urban Management, Urban Services, Waste Management, Zero Waste.