The lot, of 770m2, placed in St. Gil – Alameda Sector, of irregular form and distributed among diverse heights dividing, has only a front west-orientated and a depth between 30 and 40m. It possesses a catalogued building which first centreline is obligatory to preserve; we named it stopper house. The building on that one works, Neighbors' Mixed Tenement House, takes part of common elements of the Historical and the Contemporary ones called, though it unfortunately lacks the great central court of the first one, or the representative court of the second one. The action proposes the building tipology clarification with a program of 28 housings, a business premises with independent access and a garage.
The existing party wall tracing and the widening after the stopper house allow us to define a great representative and community space, in which head-board has placed the stairs completely opened for the great court. Around this space all the interior traffics develop across community use galleries that lead to housings. In addition other four minor courts appear for the ventilation and lighting with ground floor access. In ground floor are developed 1 and 2 bedrooms housings, with lounge–dinning room-kitchen in an unique space and a complete bath; and one apartment In the first floor, the scheme repeats itself appearing the stopper house’s housings, of 2 bedrooms, generating a well in its interior that serves both housings and the common zone of the low floor. In the second floor, the scheme repeats itself with stairs of access to an additional stay in touch with the private roof.