The building’s most identifiable feature is its aluminum façade, painted in an "earthly reddish" sepia tone that references the abundance of raw ore in Minas Giras. In order to obtain lightness and transparency, the aluminum sheets received perforations in varying sizes, which allows views from the inside out. 

However, from the outside looking in, the interiors are shielded, providing privacy for the inhabitants. The asymmetrical apertures across the aluminum skin allow for a variety of effects, from hiding smaller, functional windows to exposing the large spans. Conceived as generous openings, these windows allow for abundant light and ventilation. 

A large portion of the building’s design is guided by sustainability measures. For example, the skin covering provides thermal comfort to the units while offering shade and ventilation. Because of the site's reduced dimensions and small rooftop space, adding features like solar panels was not possible. Thus it was necessary to find sustainable heating and cooling solutions to avoid the entry of heat. 

The building’s pyramid-like shape made it possible to allocate technical areas on the external face of the masonry, as well as on the internal face of the skin.