This paper puts forth a new metric that identifies a net-zero exergy building (ZEXB) target and distinguishes the parameters that affect the results of obtaining a “net-zero” status based on the trade of exergy with the grid and/or thermal energy loop. Key strategies that guide buildings to meet and exceed ZEXB targets are underlined. These include strategies based on the re-linkage of energy resources based on higher exergy matches while reducing any CO2 emission impacts. The means of bringing buildings that deploy on-site, micro production of electricity, heat, and/or cold from renewable energy resources to ZEXB targets are discussed. A net-zero exergy community (ZEXC) target is then provided to set pace for the diversified trade of exergy in the locally more interconnected energy systems of the future. The results expand net-zero targets with exergy based strategies for a sustainable built environment.