CYCLE UP, A BANK OF MATERIALS ONLINE is an online marketplace that matches recycling opportunities resulting from decommissioned sites with new builds or renovation projects, to encourage the upcycling of materials

Multiple benefits for projects and regions
Reduced carbon impact + Reduced waste + Non-renewable material savings + Lower construction costs + Lower imports and relocation of supplies + Creation of non-relocatable jobs + Development of a community-oriented economy

This materials database will provide project owners, designers and builders with all the information they need regarding their reuse (type, amount, date of availability, location, and so on).

Preventing construction waste is the no. 1 priority of the French National Prevention Plan for 2014-2020. Under the 2008/98/EC directive of 19 November 2008, § 2.1.3, Article 29 stipulates an obligation for each EU member state to implement a waste prevention programme, examining a number of waste prevention measures so as to determine their suitability, and periodically assessing these national plans.

The construction industry produces 41% of the total tonnage of waste generated in France. Construction waste amounted to 260 million tonnes (mT) in 2010, including 39 mT from buildings.

This target also features in the energy transition bill for green growth. Yet there is currently no way of knowing the type, quantity or spatial availability of materials from decommissioning. This is because there is:

  • A general ignorance about the potential of materials reuse
  • Currently no way of quickly identifying leftover and reusable materials from a building
  • No way of knowing the availability of materials from decommissioned buildings

Based on this finding, the creation of a user-friendly, creative online marketplace should enable project owners and designers to know the quantity, type, time and location of available resources, and to determine the potential incorporation of these materials through integration examples.

The service creates value for all professionals operating in real estate and construction:

  • Designers from the Egis Group use it to source and contribute materials resulting from, or useful for, their projects
  • Architects can use it to find materials in order to meet recycling objectives and fulfil the principles of circular economy
  • For project owners, it is a way of fulfilling the objectives of the energy transition law that apply to their asset base
  • Demolition companies can use it to identify new recycling opportunities and avoid waste disposal costs
  • Builders can source materials locally and at a low cost
  • Designers can use it to offer new sustainability solutions
  • Work integration social enterprises and other businesses can become partners and develop a dedicated service


  • Wooden floors, staircase handrails and 20,000 sqm of technical flooring have been recycled and put to use in the Pulse office building currently under construction at the Parc des Portes de Paris. These materials were taken from the DEFENCE 7 building currently being demolished in Nanterre
  • For the development of its offices, Orée selected Extramuros, a specialist in designing furniture created from recycled materials. Extramuros Paris is one of Cycle Up’s 1st partners

The clear value of wood

For its design activities, Egis has a major responsibility in terms of the embodied energy of buildings. To minimise the energy intensity of buildings, the use of a renewable resource is an obvious choice. Wood, a traditional material, opens the way for responsible construction. Whether for the structure, façade, insulation or energy systems, wood can be used in many forms. Egis’s multidisciplinary culture allows it to address these issues across many different projects. The sheer size of Egis, and its participation in various national working groups for timber construction, also helps the development of our French industrial Wood subsidiary, by removing regulatory obstacles, promoting the use of local resources from sustainably managed forests, and helping the development of the French wood industry.

The benefits of wood

Structure bois du stade
Structure bois du stade
  • The “carbon” benefit: Choosing a wooden structure for buildings is obviously one of the first examples of a low carbon approach implemented on a project. The wooden structure of the project represents fixed carbon stock that contributes to the project’s overall carbon footprint in the long term.
  • The “warmth” benefit: Wood is a material that can be left exposed and that naturally creates a warm and cosy atmosphere.
  • The “durability” benefit: timber has the intrinsic property of being particularly lightweight in relation to its durability.
  • The “construction” benefit: choosing wood means that all or part of the construction can be done as a dry process, which optimises waste reduction (prefabrication, on-site reuse), and considerably reduces the disturbance of local residents, and the execution time on site.
  • Fire retardant: contrary to popular belief, wood is a material with excellent fire-resistant properties. The regulations are the same as for buildings made of concrete or brick,
  • Healthy: wood is known to have heart regulating properties. It is reported to reduce stress in occupants and reduce absenteeism rates in offices.

Discover our achievements and our expertise in design and construction using Wood.

We love wood. We love that it grows, that it traps the carbon contained in our atmosphere, and that it’s a natural fabric cleverly woven by living things, fuelled by solar energy.

Could our century be the era of wood? Wood is lends itself perfectly to digital industrial tools, offering exceptional structural potential and
extremely short turnaround times. There’s also the fact that wood offers unrivalled benefits in terms of ambiance and architectural finish, with impressive qualities when it comes to climate control: intrinsically insulating, it also allows effective hygrothermal regulation.

Find out more: references, articles 

  • Egis is involved in three projects that have each won the “Immeubles à Vivre Bois” prize for wooden residential buildings (Wood-up on Paris Left Bank, a 50m-high residential tower / the “Tour Commune” project, a 15-floor university residence / the Light House project, a 14-storey housing project. Find out more french website)
  • Enjoy, the largest positive energy office building and wooden structure in France
  • Clichy Batignolles Joint Development Zone (ZAC): this office building will be a first in the Paris region. Positioned over the tracks of Saint Lazare train station in Paris, the structure had to be lightweight. It was impossible to build it in concrete, and a “prefabricated” wooden structure was chosen over the current metal solutions typically used for this type of project. The use of a BIM is another innovative aspect of the project.  From the 1st to the 6th floor, the structure is built in wood (floors, poles) as is the façade. The building must meet the standards of a GREEN OFFICE® building and will have the specific feature of being “energy positive” which means that over the year, it will generate more energy (in renewable energy) than it consumes. Egis’s role in this project includes coordination of design studies, operational project management, scheduling supervision and coordination and the summary report. Delivery planned for late April 2018.
  •  Bordeaux: Egis, in consortium with the developer Kaufman & Broad, and architects Art & Build along with the Bellecour studio, was joint winner of the contest for the construction of a high-rise building (55m) in Bordeaux, which will be the tallest wooden building in France. This project, with its main structure in wood, impressed the jury thanks to the technical calibre of our work.
  • Nanterre/La Défense: ICADE approached Egis to assist architects Quadrifiore and Maud Caubet on a brand new adventure: 70,000 sqm of office floors in a wooden/concrete structure, 35,000 sqm of which is in wood. The project, christened ORIGIN, is eight floors high, almost as high as the Méridia tower project. This is an ambitious project both in terms of comfort and well-being at work, and of course in terms of environmental performance. For this project, Egis is carrying out EPCM for the wooden structure and façade, all building trades, and acoustic EPCM for the wooden structure and façade with Elioth, all building trades by Egis, Acoustics by ACOUSTB
  • Nice: The Palazzo Méridia tower, a 35-metre wooden office tower over nine floors. The building method used – cross-laminated timber – is key to achieving the desired height, and is reinforced with a metal exoskeleton. 900 tonnes of wood will be used for the construction. In addition to the Effinergie BePos and Bâtiment Biosourcé labels, the tower will also seek to achieve BREEAM in Use certification and level Silver under the initiative Bâtiments Durables Méditerranéens (Mediterranean Sustainable Buildings). It has also been shortlisted by the ADEME as part of the Manag’R contest on the quality of indoor air. Wood will also be predominant in the interior layout, which will be made up of wide open spaces (with the lifts, stairs, etc. around the periphery), providing multiple and versatile layout opportunities. (source Batiactu french website). Egis is providing the EPCM for this project on behalf of Ywood, a subsidiary of Nexity specialised in the construction of wooden structure offices
  • Nice: France’s second wood construction prize (french website) awarded in 2015 to the Allianz Riviera stadium in Nice, for which Egis was project manager. Find out more
  • Strasbourg: In 2014, France’s national prize for wood construction was awarded to Les Haras Brasserie in Strasbourg for which Egis was the project manager in 2014. With nearly 700 projects in competition that year, the national prize for wood construction reflects the popularity of this material. The jury, chaired by Bruno Mader, was made up of 25 industry professionals, representatives of professional organisations, builders, architects, engineers and journalists. “All are recognised experts in architecture, wood construction and design, and are capable of having an overview of the sector and its potential“, said the organising committee. See the pictures

And many other references:

The Lycée Jean Baptiste Corot (french website) in Savigny sur Orge (image below), Besançon cultural centre, the eco-hemp space (french website) in Noyal sur Vilaine

bois ; façade ;
façade bois du lycée

Ecological restoration of rivers

The example of the Mérantaise

In the department of Essonne, in Gif sur Yvette, renaturation work along almost two kilometres of the Mérantaise river has been completed. This work will promote ecological continuity as well as combating flood risk. It was the frequent floods caused by the Mérantaise river, a tributary of the Yvette, that inspired the project. In 15 years, the city of Gif-sur-Yvette has experienced five natural disasters.
Today, thanks to this rehabilitation, the river can now absorb a fifty-year flood.


A left-bank tributary of the Yvette, the Mérantaise was identified as a still largely pristine river. It was also classified as a biological reservoir and still hosted functioning populations of brown trout (Salmo trutta). The downstream section of the Mérantaise was partitioned by numerous hydraulic structures, with a resulting negative effect on ecological continuity. Concerned about the impact of these works on the overall functioning of the river, the SIAHVY (Intermunicipal Association for the Hydraulic Development of the Yvette Valley) decided to implement an ambitious operation to restore ecological continuity. Egis provided full EPCM services along with Sepia GC (for the geotechnical side).

  • Six hydraulic structures, sluices in particular, were removed
  • 9 metres in height difference were put right.
  • the bed of the Mérantaise was placed back at the bottom of the valley
  • forestry work including felling and pruning accompanied the creation of a wet meadow bordered by groves of ash and willow (beneficial to all: walkers, animals, plants). We are now expecting to see the return of animals who favour these ecosystems, such as the wagtail, the Sedge Warbler, the Green Frog, and more.

With the rehabilitation and expansion of the stilling basin, the river can now absorb a fifty-year flood.



Bat3data ®

3D tracking of bats.

To contribute to the protection of bats, Egis has developed Bat3Data®, an innovative tool used to identify the different species of bats, track them and model their trajectories in 3D. Developed in partnership with Cyberio (a company specialising in signal analysis), the Bat3Data® tool is used to track and monitor the typical behaviour of bats in their natural environment. This 3D geolocalised trajectography process (ground and altitude coordinates) is based on sound recordings on the ground, using a network of sensors, followed by computer processing of the signals received. By tracking the flight paths of bats, Bat3Data® helps to design suitable measures for avoiding possible collisions (installation of bat bridges, flight path guidance to help bats during flight, etc.). By improving knowledge of each species, the tool is also able to offer eco-design solutions for future projects such as road infrastructure, wind turbines, urban development, and more.

As part of the Enterprises & Environment Award 2014 awarded by the French Minister of Ecology, Sustainable Development and Energy and the ADEME (a French Environmental and Energy agency), Egis won the jury’s “Biodiversity and Business” award for its 3D tool for tracking bats, Bat3Data ®.

From left to right: Hippolyte Pouchelle, Environmental Engineer at Egis and Ségolène Royal, Minister of Ecology, Sustainable Development and Energy
From left to right: Hippolyte Pouchelle, Environmental Engineer at Egis and Ségolène Royal, Minister of Ecology, Sustainable Development and Energy



A wastewater treatment plant that limits pharmaceutical pollutants

Cutting-edge technology

epurationAt Saint Pourçain[1], when designing a new wastewater treatment plant, the local council assigned Egis to ensure that the future station would process residues in effluents, mainly from cardiovascular, antidepressant and antiepileptic drugs. Such cutting-edge technology was not mandatory at the time, but in Saint-Pourçain-sur-Sioule, the municipality preferred to get ahead of future standards.

In late 2013, Saint-Pourçain-sur-Sioule opened its new wastewater treatment plant. This was a new kind of plant (there were only two in France and five in the world at the time), which can process molecules that previously had been discharged into the environment. To treat these drug residues, the chosen treatment system essentially consists of adding low load activated sludge wastewater to the wastewater treatment unit, designed for 10,000 PE*, an ozone treatment followed by a biological filtration on expanded clay. This twofold ozonation/filtration process allows for a removal yield of 93% on the drug residues identified and present in the plant’s effluent.


In 2013, Egis and INERIS joined forces to try and reduce the level of micropollutants in water. This alliance aims to offer a joint service to industry firms for their studies related to the knowledge and control of industrial emissions of micropollutants in water.


[1] In France, south of Moulins, a rural community of 5000 inhabitants with a high concentration of medical and hospital establishments.

Participative quality of life study

An initiative aimed at understanding the collective stakes of a region, in order to optimise the acceptability of projects by locals.

The study collects, maps and analyses the collective and subjective representations of a region by its inhabitants to integrate this data into the design of a project.

etude participative


The benefits of the participative quality of life study are as follows:

  • Understanding the collective stakes of a given region: through the emergence of new knowledge related to inhabitants’ collective and individual perception and representation of a region.
  • Optimising project acceptability: through participative consultation and presentation of data that involves residents in a project’s design
  • Compatibility with and adaptability to any type of project: preliminary assessment studies, whatever the scale of the project, and in line with the client’s budget and deadline requirements.

As a new participative form of consultation, the study is based on new information technologies and the opportunities that these provide for spatial data.

Find out more

Eco-design accessible to all

A guide to turning a concept into a shared strategy.


Eco-design consists of incorporating environmental protection into the design of infrastructure and development projects. In a broad sense, eco-design includes all of the methods and tools for incorporating the environment into project design in order to reduce their environmental impact throughout their life cycle. In the more narrow sense, eco-design consists of looking for areas of improvement for reducing the environmental impact of a product.

This means going beyond environmental measures included in the project. The constituent structures of the project are designed for the purpose of avoidance and reduction of environmental impacts. Economic and social aspects are also fully integrated into this approach.

The added value of the eco-design approach is the fact that it considers all stages of the project life cycle: raw materials, manufacturing, transportation, use and end of life, and all the environmental impacts, such as effects on global warming, resource depletion and water pollution etc.

To facilitate the deployment of this approach, Egis has created a guide, developed as a toolkit, to leading and managing a linear infrastructure or development project (business parks, development areas) as part of an eco-design and eco-construction process. It is based on the capitalisation of Egis’s vast experience and good practice, in applying this approach across real development projects for twenty years.


Structures for marine biodiversity

Wharves, pontoons, wind turbine foundations, offshore platforms, bridge piers, dikes, breakwaters, piers, marine pipelines, and so much more. These marine structures built by humans all represent site opportunities that can be made proactive for biodiversity. In 2014, Egis created Seaboost, a company that develops and provides various eco-design solutions to allow better environmental integration of maritime structures into their ecosystem. The design of Seaboost’s solutions finds inspiration in the observation of nature, by adopting the concept of biomimetics.

This has led to the creation of the following:

seaboost_2 copy elodie rouanet
The speed at which the reed beds are colonised is amazing. Within months, these modules have been invested with marine biodiversity
  • The “Roselière” module (photo opposite) look like shelters set up by the roots of lagoon reed beds and by large marine algae.
  • The “Sea urchin” module, inspired by the symbiosis between tropical sea urchins and the juvenile fish that find suitable shelter against predators among their spines.

Since May 2014, Seaboost submerged its “Sea urchins” and “Roselières” in the great seaport of Marseille.

The aim of this initiative was to develop the potential of marine structures as nursery habitats. Almost 150 m3 of micro-habitats were deployed to equip 240 linear metres of quays and dykes in the Grand Port Maritime of Marseille-Fos. These eco-designed dikes and docks now have the important job of protecting juvenile fish growing in the shallows of the harbour before their migration to the open sea when they have grown. Our group joined forces with industrial partners for these developments.


Innovative artificial reefs

copyright SEABOOST Concrete 3D printing

To restore degraded marine habitats along the Marseille coast, Seaboost has manufactured and put into place 36 artificial reefs. Various prefabrication innovations were developed, including ultra-porous concrete and the creation of the world’s first concrete, 3D-printed artificial reef. These habitats will give a much-needed boost to the ecosystem and support its recolonisation by marine life


more information


AulnesA tool for taking into account the services that nature provides to humanity in the evaluation of a project, to contribute to the economic development of regions, and to protect biodiversity.
Armed with its environmental and engineering experience, Egis has invested the field of environmental economics to offer its customers – be they policy makers or private companies – a range of services with a dual objective: to contribute to the economic development of regions, and to protect biodiversity. Though this may appear to be a contradiction in terms, taking into account both of these issues can actually add value to a region.
After four years of research, in partnership with the LAMETA4 and substantial investment in R&D, Egis now boasts an operational tool – the “Aulnes” method and toolkit. It was completed in September 2014.


What our stakeholders think


Alexis BONNEL, Environment and Development Adviser at the French Development Agency (AFD) and member of the Egis sustainable development steering committee. In developing countries, natural resources are a key economic driver. We have identified several challenges in the AFD’s biodiversity activities that the AULNES® solution could help with, in addition to the indicators already used.


The tool is used to:

  • map the services provided by nature “free of charge” to the human community in a given area
  • evaluate any variations to these services as a consequence of the implementation of a project (industrial, infrastructure); of changes in agricultural and forestry practices; and of management practices in natural areas.

The benefits that humanity derives from nature are divided into four categories:

  • Provision services: raw materials (food, fibre, fresh water, pharmaceuticals)
  • Regulation services: climate regulation (carbon cycle, water cycle, biological control, pollination, water retention, soil penetration, runoff limitation).
  • Support services (self-maintenance): soil formation, primary production.
  • Cultural services: recreation and tourism (parks, forests, ponds, etc.), culture and education (local heritage, environmental education, etc).

[1] Montpellier Laboratory of Applied and Theoretical Economics