Casas GT3

Casas GT3
© Montse Zamorano

CASAS GT3

Bojaus Arquitectura

MANUFACTURERS
Focus

LEAD ARCHITECTS
Ignacio Senra, Elisa Sequeros

INSTALLATIONS
Valladares

TECHNICAL ARCHITECT
Ignacio Buzzanca

COLLABORATOR
Jorge Gabaldón

STRUCTURE
Bernabéu Ingenieros

PHOTOGRAPHS
Montse Zamorano

AREA
880 m²

YEAR
2021

LOCATION
Madrid, Spain

CATEGORY
Houses

Casas GT3
© Montse Zamorano

Text description provided by architect.

Located in a suburban area of Madrid characterized by single-family houses, the 800 sq. m. plot and urban regulations allowed the construction of three semi-detached houses.

Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano

Instead of this, a three-story building with one house per floor is proposed. Compared to the characteristic semi-detached houses of the neighborhood, with small floor areas and organized in three and even four floors, this building alternatively proposes spacious houses organized on a single floor with large terraces, XL windows, and a shared garden.

Therefore, circulation and server spaces are eliminated (stairs, corridors, distributors, and foyers) and the entire surface is gained for living areas. The project develops a generic model for house stacking in which each house occupies the entire floor of the building.

Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano

Each house displaces and rotates from the position of the one below, generating a series of terraces that spiral up, avoiding looking down the one immediately below.

The communication core is fragmented into an elevator that passes through the houses and an exterior stair that surrounds them as it ascends.

Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano

These two elements vary their position on the different floors due to displacements and rotations. Each house is therefore different. Although they all share the same typological scheme, they are adapted to their specific position within the complex.

The structure made of exposed concrete slabs and walls is solved without pillars or supports apart from the outer envelope. The outer case is therefore the whole structure, obtaining free plans of 13.5x13.5m.

Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano

The walls, which constitute the facades, cover the span functioning as XL beams. These walls, that counterbalanced their direction on each floor like a house of cards, ensure the stability of the whole building.

The slabs thus rest on their four sides (two supported and two hung from the walls of the upper floor). Two beams divide the plan into 3 bands and complete the structure.

It is in fact the structure that, in addition to determining the spatial configuration of the terraces and the whole volume, determines the functional organization of the dwellings.

Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano
Casas GT3
© Montse Zamorano

The central strip delimited by the beams includes all the services, hiding mechanical facilities above a wooden technical ceiling.

The two outer bands arrange bedrooms and living areas respectively, allowing concrete slabs to be released from ceilings and facilities, and recovering the whole 3m. height.


Casas GT3
Diagrams

Casas GT3
Diagrams
Casas GT3
Axonometria


Casas GT3
Elevation - North East 
Casas GT3
Elevacion 


Casas GT3
Sections 
Casas GT3
Section - Longitudinal 


Casas GT3
Plan - Ground Floor 
Casas GT3
Plan - First Floor 
Casas GT3
Plan - Second Floor