Project Paris, France

Tour Triangle

The first Parisian skyscraper of the 21st century

Sector: Buildings

The 180-metre high Tour Triangle has been designed to comply with the BREEAM Excellent (minimum) and HQE Exceptional environmental certifications, as well as the Effinergie label. The solutions implemented include geothermal systems, a district heating network and energy and heat recovery systems, as well as a bioclimatic façade and 1,000 m² of photovoltaic panels.

Tour Triangle

Unibail-Rodamco-Westfield (URW) has awarded BESIX the construction of the Tour Triangle in Paris, designed by the architects Herzog & De Meuron, winners of the prestigious Pritzker Prize. The Tour Triangle will include office space, a conference centre, but also a health centre, a cultural centre, a crèche, a hotel and a restaurant. The building's carbon footprint will be controlled, in particular through the use of low-carbon materials, including a minimum of 50% concrete with reduced CO2 emissions, and recycled materials, in particular for the aluminium facades.

Engineering & Construction

The planning, logistics and construction methods have been developed by BESIX Engineering, the in-house design office of BESIX, in order to optimally reduce the impact on local mobility, the neighbourhood and the operation of the Parc des Expositions. BESIX Engineering will also carry out the execution studies for the structure and will provide support for those dedicated to the façade. The tower, which will generate 5,000 direct and indirect jobs, will be completed in 2026. BESIX will work closely with the project management team appointed by URW: the engineering firms Setec and Egis, respectively in charge of the design studies for the structure and fluids, and Artelia as the execution project manager.

Project details

Project name

Tour Triangle

Area(s) of expertise

Offices, Hotels, Residential

Contract type



Paris, France




Unibail-Rodamco-Westfield (URW)

Building Period

2022 - 2026


Herzog & De Meuron

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