![House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_1.jpg)
House 712 by H Arquitectes
The perforated brick walls of this triangular house in Barcelona overlap at the corners.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_2.jpg)
Spanish studio H Arquitectes purposely designed the single-storey House 712 with simplistic construction details so that any builder could put it together.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_3.jpg)
An air chamber functions as a ventilation channel behind the perforated facade, while rainwater naturally drains off the walls through cavities in the brickwork.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_4.jpg)
Three bedrooms, a study, a kitchen-diner and a living room all fan around a triangular hallway at the centre of the house.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_5.jpg)
H Arquitectes always name their buildings with a number - see more of their projects here.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_7.jpg)
Photography is by Adrià Goula.
Here's some more text from H Arquitectes:
House 712
The proposal wants to occupy all the buildable part of the parcel by means of a ground floor house, entailing a triangle shaped plan with each side parallel to its correspondent plot limit.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_8.jpg)
This triangular geometry minimizes the distribution spaces (having only a central one), reduces the cost and allows a constant and homogeneous relation between both the inside and the outside.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_9.jpg)
Because of the ground level difference between site and street (the highest one), the triangular roof, almost an icon, becomes the fourth façade of the house.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_10.jpg)
While designing and planning the project, the budget was cut by 65%.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_11.jpg)
This fact strongly conditioned all the construction decisions: systems, materials, etc.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_12.jpg)
By removing all the superfluous and unnecessary elements, the house was given both an inside and an outside which are extremely austere, powerful and very expressive.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_6.jpg)
Situation: Gualba, Barcelona.
Author: H ARQUITECTES (David Lorente, Josep Ricart, Xavier Ros, Roger Tudó)
Collaborators: Montse Fornés, architect (Harquitectes) Anna Bonet, interiorista (Harquitectes) Iñaki González de Mendiguchia, technical architect
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_13.jpg)
Year of realization: 2008-2011
Surface constructed: 127,40 m2
Budget: 130.000€
Constructor: Construcciones Jufraed 2001, S.L.
![House 712 by H Arquitectes House 712 by H Arquitectes](https://static.dezeen.com/uploads/2011/11/dezeen_House-712-by-H-Arquitectes_14.gif)
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