The project is proposed to resolve an area on the city border. Where various problems arise: the resolution of a steep slope; and an elevation of Madrid cornice already consolidated. And the desire to consolidate a disused urban area and create a suggestive space that values the medieval city wall.
The proposed program consists of apartments with three uses: productive, shelter and hotel. Where special importance is given to common areas, as places of social interaction.

SYSTEM
The underlying idea is a series of served spaces between the envelope and the service spaces, composed of communication and structural nuclei that structure the building.
Two types of communications are proposed: primary and public, versus secondary and private. Through the public communication access to all common use floors takes place. From these common floors, the individual dwellings are accessed through secondary stairwells.
The functional system responds to a structural system where thicker slabs support the residential floors and free the common areas from pillars. Giving this space greater flexibility required by the common area program.

HOUSING UNIT
All the houses, regardless of use, have a central nucleus that serves two spaces: night and day areas. Due to the narrowness of the block, all the houses enjoy a double orientation and cross ventilation.

CONTEXT
The aim is to give a new public space to the city that serves as a closure for the east-west axis, concatenated with various squares of historical importance for the city of Madrid.
The building is presented to the city with three elevations that try to consolidate and close the pre-existing block: one to the city, another to the south slope and another to the city wall. Horizontality is deliberately sought, in dialogue with the houses of Cano Lasso and the Gallery of Royal Collections, as a finishing touch in the background of the cornice of Madrid.
Two longitudinal horizontal elements have been arranged that together with the different plant heights would give dynamism to the façade, these are: a cantilever, as a solar protection element against the midday sun; and a panel that hides an exterior Venetian blind that serves as sun protection on the west façade and that reaches eye level to direct the inhabitant's gaze downwards.

The southern slope suddenly takes on a new importance in the project, which is why it is about recovering the pre-existing slope, discovering a convex topographic public space.
Therefore, a space is generated that flows towards the wall, putting it in value.
The building rests on the ground slightly due to its object condition and the desire to recover an existing slope. Causing a suggestive, chimerical and abstract object-terrain tension.