Paris’ first “building with a mission” by RATP Solutions Ville

Construction works to transform the AP-HP headquarters were entrusted to the consortium led by BNP Paribas Real Estate alongside Apsys and RATP Solutions Ville.

Project completed by RATP subsidiaries RATP Solutions Ville and RATP Real Estate

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Real estate

Paris’ first “building with a mission” by RATP Solutions Ville


  • 50% office space, designed to fit new working modes;
  • Mixed-use, inclusive and community-oriented scheme that provides a window to the city;
  • The project embodies the city’s transition to carbon neutrality, boasting high environmental efficiency.

Key figures

26,500m² Total surface area
+ 6,000m² of social housing units
80 years Duration of the building lease


Known as “Hospitalités Citoyennes” (citizen hospitality), the project aims to be inclusive and provide a window to the city, by integrating a social and community-oriented programme. The building complex also offers a high level of environmental efficiency, and it is already compatible with the City of Paris’ future bioclimatic local urban planning scheme, which will take effect in 2024.

Beyond its role as co-developer, RATP Group will also be involved in the long-term development and operation of a bike mobility hub with RATP Solutions Ville in collaboration with RATP Capital Innovation’s startup ecosystem. The Group will also be involved in the creation of social housing units through RATP Habitat, and in the operation of a building complex through RATP Real Estate.

A word from the expert

This project is the result of crowdthinking, in which close to 100 people were mobilised to design an inclusive building complex that provides a window to the city and supports the urban ecological transition to better city living.

Valère Pelletier,


Le projet

The BNP Paribas Real Estate-led consortium, which comprises Apsys and RATP Solutions Ville, was awarded the bid launched by Assistance Publique-Hôpitaux de Paris (AP-HP, Public Assistance and Paris Hospitals) to rehabilitate its headquarters in Paris’ 4th arrondissement. The 26,500-m2 building complex is under an 80-year building lease.
The project, which has been named “Hospitalités Citoyennes” (citizen hospitality), is developing Paris’ first building complex “with a mission”.

The complex aims to include a mixed-use, inclusive and community scheme that provides a window to the city, comprising:

  • 50% office space, which has been designed to fit new working modes and to offer common areas that open up towards Paris and the Seine;
  • Over 6,000 m² of social housing, consisting of 46 social housing units for families, a 50-unit residence for young working adults, and two shelters for women in distress;
  • Active platforms open to the public with local businesses, sustainable and environmentally responsible food and beverage activities, healthcare and wellness centres, areas dedicated to social economy and community players, a bike mobility hub and a common courtyard.

Solid commitments were made in the design and construction of the building complex:

  • An “accompanying” architecture that brings out the best in the existing building;
  • A highly ambitious circular economy policy, and reusing as much of the on-site materials as possible;
  • Exemplary low-carbon upgrades to energy efficiency, by using bio-sourced materials;
  • A building complex that is connected to urban heating and cooling systems;
  • Planted areas in courtyards and green roofs, to depave the plot and welcome biodiversity.

Stages in the project

In June 2021, AP-HP launched a bid to refurbish its headquarter buildings at 3 avenue Victoria and 4 rue Saint-Martin in Paris, as part of Réinventer Paris (Reinvent Paris), the third call for innovative urban projects launched by the City of Paris.

The consortium led by BNP Paribas Real Estate, together with Apsys and RATP Solutions Ville, was unanimously named the winner. The project brings together architecture firms DPA – Dominique Perrault, h2o, Martinez Barat Lafore, Nicolas Dorval Bory, and Atelier Roberta (landscaper).

Projected completion in 2027

  • AP-HP has released this building complex as part of an 80-year building lease that is set to earn a total of €217 million in capitalised rent.
  • The signing of the lease agreement marked the start of an ambitious phase with the temporary occupation of in the building complex. This phase is coordinated by Plateau Urbain, which aims to anticipate and initiate future uses and schemes until the scheduled completion of the project in 2027.