The Stream Building is a mixed-use building, which was opened in May 2023. Credit: Covivio.
The Stream Building occupies 16,200m² of floor space across eight floors. Credit: Covivio.
The sixth to eighth floors of Stream Building are occupied by a state-of-the-art residential hotel operated by Zoku. Credit: Covivio.

Stream Building is a mixed-use building located in the heart of the district of Clichy-Batignolles, Paris, France.

Opened in May 2023, the building was developed by the real estate company Covivio and the real estate investment, development and management company Hines France.

Covivio and Assurances du Crédit Mutuel are the co-investors in the project. PCA-STREAM, a French architectural research and creation agency, collaborated with the developer team and acted as the chief architect for the building.

The building was built within the framework of Reinventing Paris, a competition launched in 2014 seeking innovative urban projects. It is designed as a place where people can work, stay and eat together.

Stream Building location and design details

The Stream Building is located at 6 Avenue de la Porte de Clichy, 75017 Paris. The building is situated opposite the Tribunal de Grande Instance tower and close to Metro line 14.

The building integrates innovations from research work carried out by Stream Lab to address the challenges of the cities of tomorrow. Stream Lab is the research and development laboratory of PCA-STREAM.

The building is circular and serves as a prototype for a new type of construction that uses a mix of wood and concrete to reduce its carbon footprint.

The framework of the wooden structure extends in the form of an exoskeleton to support a luminous artwork created by artist Pablo Valbuena. Illuminated geometric shapes appear, overlap and disappear based on an algorithm, adding to the unique features of the building.

A prefabrication system for the flooring, bathrooms and façade modules was used to simplify the construction process.

The modular structural grid provides the flexibility to convert the office space into residential units in the future and vice versa, without the need for structural modifications.

Vegetation is grown on the south-facing facade while the southeast facade is used to cultivate hops, which are used to feed the microbrewery located within the building.


The Stream Building provides 16,200m² of floor space across eight floors. It includes 9,600m² of office space and services located across the ground to the fifth floor.

France-based Cloud computing technology company OVHcloud leased the office space, which offers open, bright and flexible workspaces.

The offices also feature a cutting-edge reception area named the Stream Cafe, which is a place to meet, network and relax. It also features a library dedicated to Stream’s research interests.

Retail spaces, including a brasserie, occupy the ground and first floors. Hotel chain Zoku operates a 5,500m² hotel and long-stay residential space with 109 loft rooms located across floors six to eight.

Guests at the apartments can use shared facilities such as an open kitchen, a gym and a game room. The facilities meet the needs and flexible lifestyles of next-generation mobile workers.

The hotel includes 700m² of social space comprising a restaurant, a bar, a coworking area and an event space on the eighth floor. A 190m² terrace on the rooftop is connected to the hotel and offers views of the urban landscape and the Tribunal de Paris.

The base of the building houses the brewery, a salad bar, a sandwich shop and two grocery stores. The brewery has a production capacity of 20,000l of beer.

Sustainability features

A 300m² rooftop vegetable garden produces vegetables and herbs that are supplied to the onsite bars and restaurants.

The rooftop incorporates agrivoltaics, combining the garden with about 400m² of photovoltaic panels. The energy produced meets a significant portion of the building’s energy requirements.

The garden absorbs rainwater and mitigates the heat island effect. The rooftop agriculture and the vegetated and hopped facade form a biodiversity corridor.

The hopped facade provides passive thermal protection, allowing heat to enter during the winter and providing shade during the summer.

Hop residue and organic waste from the onsite brewery and restaurants are recycled at a composting unit. The compost is used as a fertiliser for the crops in the rooftop garden.

The Stream Building is expected to achieve certifications and labels, including Effinergie+, HQE tertiary exceptional, BBCA (low carbon building), BREEAM Excellent, E+C- (Positive Energy and Carbon Reduction Buildings), Plan Climat Paris and Cahier des Prescriptions Environnementales et de Développement Durable (CPEDD) for the Clichy-Batignolles ZAC.

Contractors involved

The wooden structure of the building was engineered by France-based civil engineering company GUSTAVE.

French engineering consultant VERTICAL SEA was appointed as the general contractor for the project. The company offered services such as site and data management, coordination of studies, presynthesis/technical and architectural synthesis, as well as building/construction information modelling (BIM/CIM).

Synthesia received a contract to serve as the BIM manager.

VS-A was engaged in providing facade engineering services while Khephren provided concrete structure engineering services.

Engineering consultancy CCINGENIERIE was responsible for engineering services and elevators for the project.

France-based acoustical products manufacturer AVL Systems provided the acoustics.

AE75, a historical agency with more than 45 partners, was chosen as the quantity surveyor for the project.

Biodiversity and urban agriculture expert Topager was responsible for landscape design and urban agriculture.

Geotechnical survey and geoscience services company Fugro was contracted to provide geotechnical engineering services. Quartet was appointed as the health and safety coordinator.

Testing, inspection & certification company Bureau Veritas received a contract to provide technical building control services.

Concrete provided the interior design for the hotel while TAUW France was selected as the pollution consultant for the project.

Mathis, Multispe, Rinaldi Structural, Apilog, Axima, Inéo, Otis, CSD Faces, Deerns, HACS, ENEOR and Spie Batignolles Île-de-France also served as contractors for the project.