The wheat field offers a calm view, with constant light, conducive to concentration and rest. The project makes the most of this orientation by concentrating most student rooms. The proportion of the generic room has been designed to meet the desire for modularity of its layout. The window is conceived as a use, an additional space, in direct relation with the immense landscape proposed by the place. Around the main entrance are the daylight areas and the supervisor's room. The central circulation becomes a place of exchange and benefits from the natural lighting of the wind towers. There are lockers and forms of niches to sit and discuss in the chimneys and cool summer.

By its bioclimatic components, the project is exemplary in terms of sustainable development for the following reasons:

-It exploits the complex physical properties of lime-treated straw and mud brick in the margins of market standards,
- It uses, among other things, a climatic well, combined with a simple reverse flow ventilation (low tech) and recovers water to limit the use of drinking water in toilets.
- it exploits and controls the zenith light and air currents to manage the summer comfort
- it has been analyzed as part of the OBEC experiment and has been classified E4C2, yet deemed inaccessible (very high environmental performance), without having specifically sought it.
- it was conceived and carried out as soon as the sketch by a team of welded and prospective project management, committed to a permanent environmental approach.

• Although it is a boarding school, we tried to spark the interest of high school students by offering workshops to discover construction techniques, in parallel with their educational program.

Sustainable development approach of the project owner

The Region has published its roadmap for sustainable development. The project "Green Wheat" served as a laboratory for the Region for the use of biosourced materials associated with the quest for energy performance and the reduction of greenhouse gas emissions. The result E4C2 is the proof that the squaring between E and C is not fantasy.

Architectural description

Agricultural high school embraces the scope of the trades of the land. Its architecture can also demonstrate the multiple ramifications of soil products.

The project uses plant materials, including local (straw and ground) and regional (hemp and wood) sectors.

During the study we oriented the constructive choices according to the development of the local sector. We also provided students with the results of this research.

Rainwater harvesting and composting are two other demonstrative assets of the relationship between architecture and agriculture.

The water recovered and stored in the three tanks is used not only for watering but also for maintenance and toilets.

The garden in the valley can then become a field of experimentation on a small scale to verify the combination of all these sources necessary for the growth.

The figure of the project is inspired by this organic cycle from the shape of the roof as a landscape draining water and light, to the material of the wall, clay plaster potentially from the same excavations of the site.

Thus all the axes of the project that our team has shaped over the course of many design exchanges have been conceived not only in the sense of the performance and the intrinsic quality of the building, but also in its ability to give a harmonious account of its behavior.

Nothing was left to chance: hygrothermal, acoustic and visual comforts, energy optimization, common space amenities, occupant health, durable structures and ease of maintenance.