Ecuador House – Casa X, Quito

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Ecuador House – Casa X

Key Contemporary Quito Home, South America – design by Arquitectura X

17 Mar 2008

X House

Location: Tumbaco Valley, Quito, Ecuador
Design: Arquitectura X

X House Casa X

Quito House – Casa X

Not having a site when we started design on our house, we set out an elemental scheme that could work both in Quito and the valleys east of the city; this meant distilling our experience into an abstracted form, inspired in the work of Donald Judd, that could be placed in any of the sites we would be likely to find: an open ended box, whose spatial limits would be the eastern and western ranges of the Andes.

Quito House Quito House Quito House Quito House X

As we had no actual place, we looked to the spaces we felt our own, and found the patio as the essential place maker throughout our architectural history.

On the other hand was our fascination for the prototypical glass house and its possibilities in our year round temperate climate.

While the patio creates a sense of place it has to be enclosed in order to work, so the mountains can’t become the spatial limit. The glass house is perfect for that unlimited sense of space; the addition of a patio to the glass house gave us the chance to adapt to the different site possibilities.

We separated the private and public spaces defining a patio, the service spaces and circulation could be added as a plug-in as needed depending on site conditions, further defining the patio.

Casa X Casa X Casa X Casa X Quito

Finally this diagram could be fitted into the open ended box according to specific site conditions that would define orientation, size and proportion.

arquitectura x

Construction and choice of materials were parallel considerations to the design concepts, and were decided on similar premises: a building system that could be modulated and would allow decision making based on varying budget and site conditions.
A light steel structure on a concrete plinth supports the rusted steel and plywood open ended box. Circulation, service spaces, and the elements that make the house function are inserted in white and enclosed in polycarbonate for protection from the stronger western sun. All services run concentrated parallel to circulation, rain water is kept separate from drainage, it is surface collected, and flows down the rusted ends of the box into the ground.

Main materials:

Open ended box
3 mm cold rolled steel, rusted and weather coated, for exterior planes.
9 mm varnished plywood for walls and ceiling inner planes and 15 mm varnished plywood for the floor plane (marine plywood for the outside)

Functioning elements
Concrete floors polished and painted white
Drywall ceiling and partition walls, plastered and painted white
Sandblasted glass and polycarbonate partitions
8mm polycarbonate enclosure, translucent and ice finishes

8mm single pane transparent glass with aluminium bracing and doors


Reinforced concrete plinth and foundations, reinforced concrete ground floor slabs
Steel columns, 160 mm HEB sections, rusted and coated
Steel beams, 200 mm IPN and rectangular sections, painted, 150 mm rectangular section substructure, painted
First floor and roof, reinforced concrete slabs over steel deck, weatherproof white paint (with polyester reinforcement on roof)

Ecuador House – Building Information

Architects: arquitectura x – ADRIAN MORENO AND MARIA SAMANIEGO
Built Area: 380 sqm including garages
Structural Engineer: PEDRO CAICEDO
Electrical Engineer: PEDRO FREILE
Services Engineer: RAUL CUEVA


arquitectura x, Av. Granda Centeno 1114 y Bobadilla #16, Quito, Ecuador

X House Quito images / information from Arquitectura X

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Ecuador House


Website : Tumbaco Valley, Quito