Within the framework of the Meuse and Haute Marne economic support programme, EDF has decided to centralise all its intermediary Engineering Production Management archives in Bure. Until now, these paper copy archives had been stored in nuclear, hydraulic and thermal production units, as well as in engineering units and associated services. As well as being spread over several sites, they were also handled in di erent ways. It had therefore become necessary to group them to rationalise and optimise the archiving functions: sorting, indexing, management and access. Over and above the functional aspect needed to manage the archives, this was also a strategic project providing a positive social and environmental impact on the region. This led us to work closely with local elected representatives on the economic aspects, the creation of jobs in the region as well as in the village itself, and on the architectural characteristics. The building needed to be able to fully integrate into the landscape as well as meet environmental quality standards, an aspect now fundamental to EDF’s building strategy. The objective is to obtain an energy-e cient building through the use of an intelligent morphology, a high performance skin, choice of adapted systems and the production of renewable energy. Wastewater management will reduce the ecological footprint and contribute to a symbiosis between the building and its environment. The principles underlying our approach were to compress and minimise impacts. Consequently, we directed our research towards a ‚ ve level, 19 m high building with an archives area covering approximately 1,400 m² and a total surface of approximately 7,000 m². This approach results in: 1) considerable saving in terms of the building’s envelope, 2) improved functionality translated by a reduced number of kilometres covered per year, 3) a marginal impact on the landscape (with view points at a considerable distance from the building), 4) the possibility of a maximum use of the excavated land around the building’s footprint to control water recuperation and treatment on the site, 5) an energetically and environmentally extremely high performance building, 6) the creation of a symbol representative of the approach taken by the Meuse and Haute Marne economic support programme. An archives storage building needs to have a considerable inertia and is thus “heavy”.