We include here RBA headquarters building not with the aim of talking about the project as a whole, an analysis that would allow us to highlight very positive aspects, but just focusing our interest on the façade. That leads us to talk about its lack of sincerity. The two longitudinal facades of the lower volume are articulated from a grid that reproduces the rhythm of the concrete structure. It is not the true "structure" that we see. The façade enclosure covers pillars and slab edges from the outside hiding them in sight.