A residential policy is completely different from an exclusively building one. In respect of this point of view Metrogramma studio accepted the assignment of Case & Dimore of building a little residential condominium in Bolzano. This is not a simple residential building but a complex which aims to add something new to the usual project of residential apartments especially in terms of quality and comfort of the single residences. The relationship between the different typological proposals conceived as a landscape made of full and empty spaces and the energetic innovations has allowed to direct our efforts to the innovation of the residential intervention model.One of the main characteristics of this architectural complex is that of not showing identical, repetitive residential typologies, but instead of offering different residences (despite the little residential intervention) which improve the residential offer: residences with gardens (ground floor), one-family villas ( 1° floor), loggia apartments (3° and 4° floor), attics with roof gardens (5° floor).Each apartment is provided with wide loggia-balconies and terraces on each floor. Facades are rich of accurate details which give an idea of the inner heterogeneous subdivision. The external covering has been conceived with “Carat” asbestos cement slabs set on a understructure.All windows are picture or bow windows (Metrogramma-Sogeca patent). The whole complex has been conceived in order to obtain, as a minimum target, the Klimahaus type “b” certificate.