One Nation Shopping Center “The West”

One Nation is an outlet shopping center dedicated to fashion and luxury brands. It is located in Clayes-sous-Bois, west of Paris and near the Château de Versailles (less than 10 km).

The shopping center has been awarded as a Low Consumption Building by the BBCA label, delivered by Certivéa.

The consumption due to air conditioning, which represents the largest energy item (far ahead of heating consumption), has been optimized thanks to chilled water production units that allow free-chilling operation. The air in the premises is treated by air handling units incorporating energy recovery exchangers with a thermal efficiency of 85%.


Mission carried out: Design and project management with execution of the Heating-Ventilation and Air Conditioning and Plumbing-Sanitary lots

Surfaces: 24,000 m² of commercial surface

Cost of works: € 59,680,000 excluding VAT

Schedule: 2013