The insertion of the designed object clashes with the convergence of different factors: the outstanding presence of Saint Nicholas’ church and the adjoining plaza with the annex building of the former town hall, the intricate identity of the residential volumes around, the harsh party wall of the telecommunications building and the oblique crossing of two marked local arteries. The existing ensemble constitutes a balcony facing south to the Bay and the port of Bilbao. Its skyline shows a last and precious opportunity, an open unoccupied window struggling across the fierce competition: in a natural way, its place is immediately taken by the ascending foyer of the new Auditorium. The main volume of the Auditorium leans onto the mute party wall of the adjoining building, whereas the free standing smaller one, hosting the Municipal Music School, is adjusted to the scale of the residential surroundings, thus lightening the visual perception of the complex. This volume also covers the main access to the Auditorium and the new open space generated behind by the ascending foyer, which is conceived as a great scaffolding to give access to the different access levels to the hall, while providing a panoramic view to the Abra.