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Paris Court (France)

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Photo credits: © Ph.Guignard

Reaching a height of 160 meters, the Paris Court covers an area of approximately 110,000 m² and accommodates up to 8,800 people per day.


The large rectangular atrium develops over the entire height of the base, up to 28 meters. This space is completed by two smaller atriums to the south and north, connected to the ground floor by a large longitudinal corridor through the entire base, from north to south, for 160 meters.


The eighth floor hosts a 7,000 m² wooded terrace, as well as the staff restaurant which overlooks this large garden from the functional point of view, but also visual, through the glazed facades. On the 19th and 29th floors, the levitating blocks of the tower host hanging gardens, creating a green tower. There are other semi-outdoor spaces of conviviality in the visible greenhouses of the East facade on double volume, located on the last floors of the low and median blocks.


The vertical and horizontal photovoltaic panels animate the facades (East and West). They also express the will to introduce alternative energies in public buildings. The energy performance of this unit is thus of the highest quality and respects the ambitions of the Paris Climate Plan, as well as the requirements of the 2012 thermal regulations.




  • The thermal inertia, the use of natural ventilation, the integration of 2,000 square meters of solar panels on the East and West facades, and the recovery of rainwater, testify to an architecture concerned with energy efficiency.
  • This building meets the requirements of the Paris Climate Plan. It also complies with the Clichy Batignolles ZAC Sustainable Development Charter, and an evaluation and monitoring of future building consumption will be implemented.




The energy performance of the building is constantly monitored by the Technical Building Management (BMS) which centralises the feedback of all technical equipment. The particularly ambitious metering plan makes it possible to detect and diagnose any drift in consumption.


Primary energy need: 122,00 kWhpe/m2.year

Primary energy need for standard building: 144,00 kWhpe/m2.year




Indicator: EN 13829 - q50 » (en m3/h.m3) (I4) m3/H.m2 n50 (Vol/H) Q4

Air Tightness Value: 1,70


A bioclimatic building certified HQE (HQE is the French certification awarded to building construction and management as well as urban planning projects. HQE promotes best practices, sustainable quality in building projects and offers expert guidance throughout the lifetime of the project).


The use of natural ventilation in the lost room, a high performance crystalline façade to maximize natural lighting while protecting from solar radiation are some of the answers provided by this bioclimatic architecture.


The facade has been the subject of special attention to determine the characteristics of the glazing offering the best compromise between a strong light transmission to promote natural lighting, a reduced solar factor to limit the solar radiation in summer.


The study of each facade according to its orientation made it possible to provide an adapted response in terms of glazing and solar protection.




  • Heating system: Urban network, heat pump, low temperature floor heating, radiant ceiling
  • Hot water system: Urban network
  • Cooling system: water chiller, reversible heat pump, floor cooling, radiant ceiling
  • Renewable systems: solar photovoltaic (renewable energy production 2%)


GHG in use: 7,00 KgCO2/m2/year

Building lifetime: 100,00 year(s)

Methodology used: RT2012

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