![Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_1.jpg)
Le Polyèdre by Béal and Blanckaert
Tread-like indents in the concrete facade of this rock-climbing centre might encourage visitors to scale the walls (photos by Julien Lanoo).
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_4.jpg)
Designed by French architects Béal & Blanckaert, Le Polyèdre is situated outside Lille and houses a gym as well as a rock-climbing hall.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_13.jpg)
The roof the centre slopes upwards at one end to accommodate the faceted climbing wall, which has both white and bright orange surfaces.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_16.jpg)
Timber frames the building’s doors and windows, most of which are trapezium-shaped.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_12.jpg)
This is the third building we’ve published this month by Béal and Blanckaert, following a Corten-clad library and a nursery with a colourfully striped facade – see all our stories about the architects here.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_8.jpg)
Here's some more text from Antoine Béal and Ludovic Blanckaert:
Salle d'escalade de Mons-en-Baroeul
Within a larger restructuring of the 70's modernist city center by the urbanization office FX Mousquet, the city of Mons-en-Baroeul decided to create room for a rock climbing hall and a gym space.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_20.jpg)
The project finds it's place on a topographical spot within the urban architecture.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_10.jpg)
The building unites the two functions (rock climbing & gym) in one hexagonal ground plan; a form dictated by the rock climbing wall and its surrounding function.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_14.jpg)
Rock climbing in the north of France remains artificial; so is the architecture of the project.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_15.jpg)
The materials chosen decompose the hilly landscape.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_7.jpg)
The concrete wall rises up as an artificial rock; this dividing structure embraces the functions of a sporting facility.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_6.jpg)
The vegetal roof, with both winter and summer vegetation, artificially reflects the alpine landscapes within the equally artificially constructed urbanism of Mons-en- Baroeul.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_5.jpg)
The interior has two well defined spaces. One space, the rock climbing hall, mimics a theatre atmosphere to maximally embellish the sport of rock climbing.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_3.jpg)
The second space encloses the gym quarters in an uncommon wooden atmosphere, a characteristic of the chosen OSB material.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_site-plan.gif)
Wooden window frames unite this uncommon architecture to the many different buildings and to the topographically interesting garden surrounding the building.
![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_plan.gif)
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![Le Polyèdre by Béal and Blanckaert Le Polyèdre by Béal and Blanckaert](https://static.dezeen.com/uploads/2011/11/dezeen_Le-Polyedre-by-Beal-and-Blanckaert_section.gif)
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Name of the project: le polyèdre
Address: Mons en Baroeul
Architectes: Antoine Béal et Ludovic Blanckaert
Collaborateurs: T .Foucray – J.Ramet
Client: Ville de Mons en Baroeul - France