Our firm was facing a task of developing an interior for one of the major flagship business centers in Chelyabinsk. The building has a radial plan, with all the premises located in an arc. Such a layout always requires finding an unconventional solution for interior finish. We offered a common solution for the entrance lobbies and halls. The lobby area is a turngate zone controlling the access to the office part of the building, and we wanted to make it functional, on the one hand, and break away from the trivial and dull stereotypical solutions, on the other hand. One of ideas was to combine laconic business style with unexpected flexible effects, attaching bright identity to the whole space, so that people entering the lobby from a 'grey' city street could almost feel a different quality with their skin. And we managed to achieve this: the contrast creates a WOW effect! A black and white color palette of the finishing materials gives the place austerity, while parametrical patterns in the floor coating alter the linearity of space perception, creating a plot. The emphasis in the lobby zone is put on a customized biomorphic reception desk, which is compositionally linked with a Vibia designer lighting fixture zoning the lobby space.