L1ve in our CAN0P-2030 ambition: an example of restructuring towards accelerated decarbonisation of our operating buildings

Built in 1964, l1ve is a 33,500 m² building located at 75 avenue de la Grande Armée - Paris 16, the former headquarters of PSA. As part of a low-carbon trajectory contributing to collective carbon neutrality, this building is currently being restructured to significantly improve the building's carbon performance and is part of an ambitious circular economy approach.

Main project's drivers for reducing the greenhouse gas (GHG) emissions

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Energy and resource efficiency

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Energy Decarbonisation

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Energy efficiency improvements

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Improving efficiency in non-energy resources

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Emission removal

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Financing low-carbon issuers or disinvestment from carbon assets

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Reduction of other greenhouse gases emission

Project objectives

Reducing the building's carbon footprint during the development phase and then in the operating phase in order to make it part of the CAN0P-2030 trajectory, Gecina's plan to accelerate the decarbonisation of buildings in operation by 2030.

Detailed project description

Built in 1964, l1ve is currently being restructured as part of an ambitious and unique low-carbon and circular economy approach in the heart of Paris. Located on the Concorde, Place de l’Étoile, Grande Armée, La Défense axis, the 33,500 m² building stands out for its architecture and the quality of its spaces: the preservation of the monumental structure of the large gallery on the ground floor and its facade with its assertive graphics make this building unique in the capital.


In 2022, L1ve will become the headquarters of a major consulting firm.

In 2020, l1ve won the MIPIM Awards in the “Best Futura Project” category.


The restructuring of L1ve implements a representative set of elements of Gecina’s CSR policy, particularly in terms of low carbon and circular economy:

▪ A project designed to consume 68 KWh of final energy/m² and emit 2.1 KgCO2/m² once in operation, i.e. respectively 2.5 times less and 7 times less than a comparable building on the market according to the Observatoire de l’Immobilier Durable ;

▪ Emissions due to the renovation and the construction materials used are very well controlled: only around 768 KgCO2/m² thanks to the preservation of the existing building and the selection of materials that have undergone an LCA. This is better than the average for comparable operations (1109 KgCO2/m² according to the E+C- Observatory);

▪ 48% improvement in energy performance and 81% improvement in carbon performance after renovation;

▪ Implementation of renewable energy on the site: installation of solar panels on the roof, deployment of geothermal energy and connection to urban heating and cooling networks;

▪ Selection of materials according to their carbon impact and place of manufacture;

▪ Reuse of materials: 66% of the 1,500 m² of the gallery floor comes from the old façade;

▪ Resale and donations to associations when possible: 75% of materials sold to start-ups for the manufacture of design objects, 25% of material donations, i.e. the equivalent of 500m2 of office space;

▪ In the end 80% of the audited materials were reused, i.e. 83 tons of waste avoided (equivalent to 394 tons of carbon emissions avoided during the renovation process);

▪ Rainwater harvesting and reuse;

▪ 8% of hours worked in favour of social inclusion;

▪ Contribution to biodiversity and well-being: creation of 2,800 m² of accessible green terraces, garden, and rooftops;

▪ Proximity to public transport; with metro line 1 and RER C at the foot of the building and the forthcoming extension of the RER E and T3B tramway.


This policy enables the highest environmental standards to be achieved on this project:

▪ HQE Exceptional Sustainable Building,

▪ LEED Platinium,

▪ BBCA Renovation,

▪ WELL Gold,

▪ BiodiverCity®,

▪ WiredScore Platinum.

Emission scope(s)

on which the project has a significant impact

Scope 1

Direct emissions generated by the company's activity.

Scope 2

Indirect emissions associated with the company's electricity and heat consumption.

Scope 3

Emissions induced (upstream or downstream) by the company's activities, products and/or services in its value chain.

Emission Removal

Carbon sinks creation, (BECCS, CCU/S, …)

Avoided Emissions

Emissions avoided by the activities, products and/or services in charge of the project, or by the financing of emission reduction projects.

Scope 1 : Improvement of the carbon performance of the building after renovation

Quantification : Emissions of 2.1 KgCO2/m² /year, i.e. 37.9 KgCO2/m² /year reduction compared to the building’s performance before the works (64,655 tCO2 reduction over 50 years).

Scope 3 : Low-carbon restructuring through the circular economy approach: a carbon performance of 768 KgCO2/m²

Quantification : Emissions of 25700 tCO2, i.e. a reduction of 11,600 tCO2,

compared to the average performance of a comparable building in France.

The building has a surface area of 33,500 m².

The carbon footprint of the operation is estimated over the life of the building at 2.1 KgCO2/m² /year (compared to 40 KgCO2/m² /year before the works). This represents a reduction of 1300 tCO2/year.

The carbon footprint of the renovation is 768 KgCO2/m²  (compared to 1109 KgCO2/m² for a comparable average performance in France), i.e. a reduction of 11,600 tCO2.

Key points

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Invested amount


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Starting date of the project


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Project localisation

75 avenue de la Grande Armée – Paris 16th

Project maturity level

Prototype laboratory test (TRL 7)

Real life testing (TRL 7-8)

Pre-commercial prototype (TRL 9)

Small-scale implementation

Medium to large scale implementation

Economic profitability of the project (ROI)

Short term (0-3 years)

Middle term (4-10 years)

Long term (> 10 years)

Illustrations of the project

This project contributes to the following SDGs:

  • SDG 7 Use of renewable energy: installation of geothermal energy and photovoltaic panels on the roof, and connection to urban heating and cooling networks
  • SDG 12 Sustainable consumption and production: the principles of the circular economy have been followed for the use of certain materials on the site, thus reducing the consumption of new raw materials while recycling certain components.
  • SDG 13 Climate change measures: the rehabilitation of the building and the circular economy implemented on this project avoids further CO2 emissions while recycling some materials.

Circular economy actions are deployed on 100% of Gecina’s current developments. As a result, Gecina has reduced its carbon footprint of projects under development by 42% in five years, with an average performance of developments underway in 2021 of 771 KgCO2/m².

By the end of 2021, Gecina’s office developments will target an average consumption of 63.5 kWh/m2/year once delivered and average emissions of 2.5 KgCO2/m2/year.

100% of Gecina’s developments produce renewable energy on site.

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Contact the company carrying the project


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