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Client :SEBL Grand Est, Région Grand Est, AEDIFICEM
Location : Rethel (08) FRANCE
Missions : Architecture and landscaping design concept and follow up

Consultant : CETEC,ECO3E
Plot area :  257 733 m²
Building area : 180 m²
Cost : 1 400 000 € HT
Date : Competition

The “Biomass boiler house and its heating network” project is presented as a functional and sustainable solution. The biomass boiler is built around an elevated dock to the west of the plot dedicated to unloading and a lower dock to the east giving access to it. The storage silos inscribed in the natural topography of the site facilitate the unloading of heavy vehicles. The intensive landscaping of the plot allows the project to blend harmoniously into its near and far environment. The lining of the docks is built of permeable honeycomb slabs, it contributes to the green identity of the site and to the zero discharge of rainwater from the plot.

HQE® targets processed : 

Target 1 : harmonious relation between building and its environment

  • This landscape project restores and protects biodiversity

Target 2 : choice of integrated products and building materials

  • Construction and coating materials were chosen for their durability, adaptability and low maintenance.

Target 4: Energy control

  • Reduce energy requirements with a sound architectural design. Improve overall shell aptitude to limit heat loss and reduce energy needs in the summer and winter.

  • Reduce primary energy consumption and related pollutions (heating, ventilation, lightning…)

Target 5 : water management

  • Rainwater management on the plot is treated with several naturals process. This process protects biodiversity, recycles water and reduces maintenance operations.

  • Water is manage by green roofs that are designed on the top of the buildings.

  • Green planted ditches are designed to collect exceptional storm water.

Target 9 : visual comfort


  • Visual comfort is treated thanks to the intensive plantation of the plot as well as the bio-based and bioclimatic design of the architecture.

Target 15 : biodiversity

  • All of the landscaping carried out on the site combines the effectiveness of ecological treatment with the conservation of flora and fauna adapted to this environment.
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