Inspired by brutalism and socialist-modernist architecture, ePBT Brutalist features a muted color scheme reminiscing the shades of concrete. Alphas bring forth the pale blocks of Russian governmental structures built before the eventual fall of the regime, mods were given a darker tone of grey, and the base color for the accents is the equivalent of watery asphalt. Also, its two novelty sets feature characteristics and iconography from the extended world of bton brut.

Even though the set's name and main theme focuses on brutalism as an architectural theme and aesthetic practice, part of the novelty designs and the inspiration listed below draws from a broader range of architectural references, from names like Mies Van der Rohe, Walter Gropius and Le Corbusier.