- Building Type : Other building
- Construction Year : 2020
- Delivery year : 2021
- Address 1 - street : rue des céréales 93210 SAINT-DENIS, France
- Climate zone : [Cfc] Marine Cool Winter & summer- Mild with no dry season.
- Net Floor Area : 235 m2
- Construction/refurbishment cost : 280 000 €
- Cost/m2 : 1191.49 €/m2
Primary energy need :
(Calculation method : )
The “Urban Thatch” project is a street covered in thatch and re-used wood which allows the workers of the tertiary park to join the metro to the office buildings. The ring, connected to the Place du Front Populaire opposite the metro exit, is an invitation to stroll.
This urban architecture adopts an exemplary and innovative approach in terms of ecology, biobased materials and reuse.
Local, biobased and associated with the history of the site, thatch is used as an organic volume, a plant topography that animates the urban landscape. Like an articulated myriapod, this intriguing landscape element arouses the curiosity of users and creates a myth around this centipede, promoting soft mobility and encounters.
Sustainable development approach of the project owner
Explain the motivations which led you to construct such a building:.
The Parc des Portes de Paris, located on the territories of the towns of Saint-Denis and Aubervilliers, is a private landholding of 65ha of which ICADE is the owner and manager. The site corresponds to the old premises of the warehouses and general stores of Paris (EMGP).
In the general context of developments in Greater Paris and more precisely of the programs of the Territorial Development Contract 2014/2030 “Territory of culture and creation”, ICADE wishes to make the Parc des Portes de Paris a business district demonstrating the smart and sustainable city, through concrete experiments.
To meet a demand from tenants which is to protect pedestrians from bad weather, make this last kilometer pleasant and revitalize the areas served: create a “covered street” connecting the Front Populaire metro to the place of commercial activities.
The “covered street” route stretches for approximately 1km from the entrance located at 45 avenue Victor Hugo in Aubervilliers to the Front Populaire metro.
It can be broken down into three parts: a North-South axis, a bend that will accommodate a future tram stop and an East-West axis.
What was your goal?
Today, the Parc des Portes de Paris is served by different modes of public transport (Metro, Bus, Tram, etc.).
To support the change in behavior in favor of public transport and soft mobility, Icade wishes to support simpler and more pleasant journeys linking the tertiary zone to public transport stops.
"The covered street" must have 3 main functions:
- Shelter: promote and facilitate soft mobility on its route by using re-used materials and offering ease of use and maintenance over time.
- Energize: make the covered street a lively and attractive center with informative and recreational functions (services related to mobility, catering, artistic installations, etc.)
- Produce: this passage can also be a place of production of resources (production of renewable energy, water recovery, urban agriculture, etc.) with an educational function for users.
What objectives did you set at the start of the project? Is this your first green building?
The objectives we have set for ourselves respond to Icade's raison d'être, which is:
“Design, Build, Manage and Invest in cities, neighborhoods, buildings that are innovative places, places of diversity, inclusive places, places that are connected and have a reduced carbon footprint. Places where it is good to live, live, work.
This is our ambition, this is our goal.
This is our reason for being ”
This project also meets ICADE's CSR objectives, which revolve around three axes:
- low carbon transition and conservation of resources;
- well-being of occupants, support for new uses and local roots;
- development of employee skills, well-being at work and diversity.
It is also about responding to the demands of our customers by promoting gentle travel in our park.
What makes the difference between this project and the previous ones, with regard to the design, the stages of construction and the final result?
It is an atypical project which does not correspond to what we usually do, it has allowed us to be very ambitious on reused materials.
A unique urban entity, this long covered street will energize the site and accelerate the development of soft mobility in the Parc des Portes de Paris. The covered street is connected to the Place du Front Populaire to the north, then extends along the rue des céréales.
Designed as a reversible space, the covered street can accommodate several temporalities of uses, daily and seasonal. From the metro, the user will enjoy walking in the shelter of this promenade, on foot or by bike. This multifunctional space will be a real area for creating links between the occupants of the place; it will be the occasion for meetings and exchanges between the workers who will be able to meet there for the lunch break. This street will also be an opportunity to welcome new ways of working “outside the walls”: meetings while walking, running, at the café, outside conferences, promotional events.
Conversely, passers-by can disconnect from the office by strolling through an outdoor relaxation area.
Assuming the contrast of the material in a very urban area, this thatch skin covers a re-used wooden structure. This anachronistic ensemble in this environment leads passers-by to look up, stop and take the time to wonder about their surroundings and the place where they pass through on a daily basis.
See more details about this projecthttps://www.moonwalklocal.fr/project/chaume-urbain-reemploi/
Structures calculistCUBE Ingénieurs Ferran Yusta Garcia, yusta.cube[at]gmail.com, 0973237323 structure study
Other consultancy agencyMOBIUS REEMPLOI Noé BASCH, nb[at]mobius-reemploi.fr, 0675767247 reuse study
Other consultancy agencyLAB INGENIERIE Noé BASCH, nb[at]lab-ing.fr, 0675767247 environmental study
Assistance to the Contracting AuthorityGREENFLEX Sebastien DELPONT, sdelpont[at]greenflex.com consulting
CompanyGLOT CHARPENTE Denis GLOT, glot.charpente[at]wanadoo.fr, 0243767345 Carpenter
CompanyBOUGEARD CHAUMIER Adrien BOUGEARD, chaumier35730[at]gmail.com, 0299888471 thatching craftsman
The rehabilitated warehouses of the Parc des Portes de Paris reveal their history through their upgraded industrial architecture, but also through the toponymy of this converted site. High place of storage of the capital city, the non-perishable foodstuffs which stopped there at the end of the XIXth century appear today on the plates indicating the names of the streets: streets of grain, flax, salt, barley, cereals or even hops. A few clues that give passers-by the ingredients to understand the original functions of this now tertiary park.
In the continuity of this imaginary to be developed, starting from a story being rewritten, the covered street project proposes to connect the brick warehouses in their mineral setting by a thatch ribbon. This ancestral covering material is composed of stalks of cereals (here reed straw). It makes the link between the image of foodstuffs and the building material.
Today, it has become a tertiary park where the headquarters of large national firms and television studios coexist, a microcosm swarms almost 24 hours a day.
Reuse : same function or different function
- Structural works
- Structural framework
- 75 %
Reproductibility and Innovation
- 60 000 €
- 22 %
- -25 000 €
Reasons for participating in the competition(s)
The challenge of developing national sectors: THATCH / WOOD
The use of thatch and re-used wood directly benefits the local economy. Indeed, by their nature, these two techniques favor know-how and labor rather than industry.
Thatch designates roofs made from plant materials. These are stems of grasses that are collected at the beginning of autumn once dry: it can be reed, rush, rye or heather. For the project, we used Camargue reed (production and processing).
The ancestral know-how of craftsman-thatching is thus promoted in an emblematic project. Little mechanized, this sector mainly requires labor from harvest to installation on the frame. This technique therefore directly benefits the local economy through its place of production, processing and implementation.
Combining empirical common sense and technological innovation
Mixing low and high tech, the innovation of the project lies in the alliance of a secular roofing material with advanced technology for the realization of the framework. The complex volumetry assumes the use of specific 3D modeling techniques.
The thatched roof is both a reference to history, a mixture of ancestral and innovative techniques, as well as environmental education.
The use of re-used wood for the structure (75% of re-used wood corresponding to the posts, struts, slope links and purlins) makes it possible to perpetuate and preserve the know-how of the carpenters on its analytical capacity and hand shaping.
The wooden structure is designed with reused elements. In this approach, the complexity is to coordinate the schedules between sourcing (finding the available material) and the site. The selected company got its supplies from a demolition site it had in progress and from a specialized supplier.
Using re-used timber requires a good knowledge of the carpenter trade. It is advisable to use the parts according to their deformation and their aging.
The imperfections of re-used timber are assumed and give the structure a particular character (left timber, marked, holes, presence of old mortises).