The research deals with the building design aimed at meeting the strict ecological criteria set out by the European legislation of 2020 while using the latest digital technologies of parametric designing in the Grasshopper program. Specifically, we have focused on the architectural design stage. Instead of providing purely technological solution, we preferred to use technology as a part of the architectural concept. The goal was to get closer to the zero energy building concept. Parametrization of the technological, aesthetic and organizational part of the building into a single system as well as parametrization of the surrounding environment was chosen as the tool. The research shows one of the options how to extend the building's information model into the conceptual design stage and how to interconnect data with the environment.