1. General information
Location and description of the intervention
City or FUA
Toulouse
Region
Europe
Native title of the NBS intervention
Ferme citoyenne
Short description of the intervention
Citizen Farm was a start-up founded by Pierre Osswald (Ref. 3). The project began with an experimental urban farm in a vegetable garden of Raymond 6. The ozarium farm (a vegetable aquarium) uses a technique called aquaponia (Ref. 5). This technique grows all kinds of plants and vegetables indoors in an entirely natural way. Fertilizer or watering are not needed. Plants feed on the nutrients in the aquarium: water and fish discharges. In return, they purify and oxygenate fish water. It is an ecological and educational innovation which is surfacing as an "eco-responsible" trend. (Ref. 1, 2). The Citizen farm initative was ended in 2018 due to financial difficulties (Ref. 35).
Address

Jardin Raymond VI
Saint-Cyprien
31300 Toulouse
France

Total area
15.00m²
NBS area
15.00m²
Type of area before implementation of the NBS
Timeline of intervention
Start date of the intervention (planning process)
2013
Start date of intervention (implementation process)
2016
End date of the intervention
2018
Present stage of the intervention
Goals of the intervention
The goal of the farm was to innovate the production of what is equivalent to the energy and consumption needs of four people for one year in its publicly distributed form (Ref. 3, 6). The goal of the system is also to be 100% self-sufficient (Ref. 6). The ozarium's reduction of water usage also has the potential to advantage cities or countries in situations of water stress (Ref. 5).
Quantitative targets
- To grow vegetables with 90% less water than in conventional agriculture (Ref. 4)
- the system is to be limited to using 3,000 liters of water (3m3) for the 15m2 scale of operations conducted at the farm (Ref. 8)
- 800kg of vegetables grown and produces 400 fish per year (Ref. 19)
Monitoring indicators defined
Water usage, kg of vegetables grown and fish produced per year (Ref. 4, 19).
Please specify "other Type of NBS project"
Installation of ozarium farm (a vegetable aquarium)
Implementation activities
Pierre Osswald launched the Citizen Farm project in 2013 (Ref. 13). One year of work was necessary to develop the first test of this unique product in France, (Ref. 9) which is based on the combination of a greenhouse and an aquarium, all housed on and in a container. The farm is the size of a parking space (13m2 and 15m2) (Ref. 5, 6, 11). The challenge of the project was to find the right balance between the number of fish, the type of plants and the amount produced to feed four people. The product was sold on the internet (Ref. 10). Osswald targeted businesses, communities, real estate developers and states with several business models in North America and Europe (Ref. 5, 6). Citizen Farm hosted visiting schoolchildren year round while dishes are prepared by chefs twice a week, (Ref. 3, 11) while surplus production will be given to associations (Ref. 8). It also organised practical workshops on insect hotel creations or seed dispensers etc. (Ref. 12). By mid-2016 the start-up had 4 employees (Ref. 6). Upon filing for bankruptcy in 2018, CitizenFarm employed 10 people and “…had succeeded in attracting 6,000 private customers and had installed seven aquaponics farms throughout France” (Ref. 35).
Type of NBS project
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Community gardens and allotments
Other
Please specify "other allotments and community gardens"
Experimental urban farm in a small container hosted in a vegetable garden (Ref. 5)
Please specify the number of plots or allotment gardens
One (With others sold to private users) (Ref. 25)
Vegetation Type
Amenities offered by the NBS
Services
Expected ecosystem services delivered
Provisioning services
Food for human consumption (crops, vegetables)
Water (surface and ground water for drinking and non-drinking purposes)
Regulating services
Water purification / filtration
Cultural services
Intellectual interactions (scientific and / or educational)
Please specify "other cultural service"
Education
Scale
Spatial scale
Sub-microscale: Street scale (including buildings)
Beneficiaries
Governance
Governance arrangements
Non-government actors
Social enterprise
Please specify the roles of the specific government and non-government actor groups involved in the initiative
Toulouse Metropolis provided Osswald the necessary free space at the vegetable garden at Raymond 6; it also provides access to the garden for others with the intention of raising fish, growing vegetables and, above all, sensitizing the general public (Ref. 3). The start-up has also formed a partnership with Action Logement with the intention of mobilising the public around the project after its intervention at the Roofs Solid'Air Salvation Army foyer in Reims (Ref. 16, 33). From 2015 the start-up also joined the At Home community of start-up entrepreneurs at the Place de la Bourse in Toulouse as a way of attracting companies and investors with shared events and services (Ref. 25).
Key actors - initiating organization
Land owners
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Social enterprise
Please specify other land owner
The container in which the farm was based was owned by CitizenFarm, but space was provided by the city in the Rayomnd 6 Gardens (Ref. 3).
Please specify other landowner
The container in which the farm was based was owned by CitizenFarm, but space was provided by the city in the Rayomnd 6 Gardens (Ref. 3).
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Unknown
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Yes
Please specify the "local regulation/strategy/plan"
The Citizen Farm project is supported by Toulouse Metropole in the framework of the Smart City experiments. Through the Smart City Toulouse project, the city aspires to become a more fluid, friendly, innovative, dynamic, attractive, responsible and sustainable metropolis (Ref. 15, 27, 34).
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Unknown
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Unknown
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Unknown
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Unknown
Co-finance for NBS
No
Co-financing governance arrangements
No
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
€20 000 (Ref. 3)
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
Pierre Osswald fully financed the €20,000 for the urban farm experiment (Ref. 3).
Source(s) of funding
Please specify other source of funding
Individual citizen (Ref. 3).
Please specify other type of fund used
Personal finances (Ref. 3)
Non-financial contribution
Yes
Type of non-financial contribution
Who provided the non-financial contribution?
Please specify other Business model
Develop a sustainable farming solution that can be utilized in cities
Business models
Which of the involved actors was motivated by this model?
Type of innovation
Please specify technological innovation
PRODUCT: Based on a culture technique called aquaponia, the ozarium allows to grow all kinds of plants and vegetables indoors, in an entirely natural way. No need for fertilizer or watering: Plants feed on the nutrients in the aquarium water and fish discharges. In return, they purify and oxygenate fish water. An ecological innovation which is surfacing the "eco-responsible" trend (Ref. 1).
Please specify novelty level of the innovation
The urban farm is both noted and claimed as being the first of its kind, and is based on Osswald's experiences as a BA student at Toulouse Business School in China and motivated by his experiences of urban living and food consumption growing up with his Tarnais farming grandfather (Ref. 5, 7, 11, 17). Aquapony itself however is not recent and in fact dates from the Antiquity and was used especially in Mesoamerican cultures (Ref. 22, 24).
Please specify Replicability/Transferability
Very pleased with the start-up, Pierre Osswald deployed his urban farming innovation as a new product on May 9, 2016. The first copy was installed in the Raymond 6 garden in Toulouse (behind the Abattoir Museum in the St Cyprien district). "It is a real urban farm, and we are going to produce food (vegetables + trout) all year round, on the same space it takes to create a parking space. "Based on the same principle of culture as Ozarium, this first urban Citizenfarm farm will be open to the public, and tastings will be organized with a chef.", says Pierre (Ref. 1). An experiment similar to that conducted in Toulouse also occurred in Montreal late 2016 (Ref. 5, 6). Another prototype is situated on the banks of the river Garonne, (Ref. 13) and another at the Roofs Solid'Air Salvation Army foyer in Reims. (22, 33) The start-up participated in a call for projects in Paris and aims to open a large 200-square-meter aquaponic farm in Toulouse in partnership with a local school that will lend the land (Ref. 16).
Impacts, benefits
Description of environmental benefits
Environmental quality:
-Improved waste management: This NBS was based on the principle of circular economy where the waste of some becomes the raw materials of others. Waste from fish was used as fertilizer to grow plants in a manner not requiring fertilizer (Ref. 3, 35).
Description of economic benefits
-Increase in agricultural production (for profit or not): Each system could produce 800kg of vegetables and 400 fish per year (Ref. 19).

-Increase of jobs: By mid-2016 the start-up had 4 employees (Ref. 6). Upon filing for bankruptcy in 2018, CitizenFarm employed 10 people and “…had succeeded in attracting 6,000 private customers and had installed seven aquaponics farms throughout France” (Ref. 35).
Description of social and cultural benefits
Social justice and cohesion:
-Increased access to healthy/affordable food: Citizen Farm hosted visiting schoolchildren year round while dishes are prepared by chefs twice a week, (Ref. 3, 11) while surplus production will be given to associations (Ref. 8).
-Improvement of sustainable agriculture practices: This NBS was based on the principle of circular economy where the waste of some becomes the raw materials of others. Waste from fish was used as fertilizer to grow plants in a manner not requiring fertilizer (Ref. 3, 35).

Education:
-Support education and scientific research/Increased awareness of NBS and their benefits: Citizen Farm hosted visiting schoolchildren year round while dishes are prepared by chefs twice a week, (Ref. 3, 11) while surplus production will be given to associations (Ref. 8). It also organised practical workshops on insect hotel creations or seed dispensers etc. (Ref. 12).
Type of reported impacts
Indicators
Water usage, kg of vegetables grown and fish produced per year (Ref. 4, 19).
Analysis of specific impact categories
Job creation: The NBS created ...
Environmental justice: The implementation of the NBS project resulted in ...
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
This NBS ended prior to the Covid-19 pandemic (Ref. 35).
Methods of impact monitoring
Process of recording NBS impacts
Methods used to evaluate the impacts of NBS
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Unknown
Presence of indicators used in reporting
No evidence in public records
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Impact assessment mechanism
Name of any specific impact assessment tools
Unknown
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Yes
Mode(s) of citizen involvement in evaluation/assessment
Please specify other modes of citizen involvement in evaluation/assessment
The Citizen Farm team have engaged in online discussions with citizens inquiring about the project. (5)
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
Documents relevant to the intervention
Attachment Size
(34) Smart City (4.63 MB) 4.63 MB
List of references
(1) Toulouse Business School. [no date]. CitizenFarm, un aquarium qui fait pousser des plantes ! Available at: http://www.tbs-education.fr/fr/newsletter/projet-honneur/citizenfarm-un-aquarium-qui-fait-pousser-des-plantes (Website not available in 2020).
(2) Paimeblanc, Luci. (2016). Ça pousse dans la ferme urbaine aquaponique de Toulouse. Available at: http://www.ladepeche.fr/article/2016/06/28/2374656-ca-pousse-dans-la-ferme-urbaine-aquaponique-de-toulouse.html (Accessed: October 15, 2020).
(3) Laignez, Julien, (2016). Toulouse : des déjections des poissons pour cultiver des légumes. Available at:
https://www.francebleu.fr/infos/agriculture-peche/toulouse-citizen-farm-les-dejections-des-poissons-pour-cultiver-des-legumes-1464030053 (Accessed: October 15, 2020).
(4) Citizen Farm. [no date]. Les produits les plus frais, avec du goût poussent naturellement au coin de la rue ! Available at: https://citizenfarm.fr/ferme-urbaine/ (Website not available in 2020).
(5) de Varax, Aurélie. (2016). Citizen Farm installe la première ferme urbaine française en aquaponie, à Toulouse. Available at: http://www.touleco-green.fr/La-start-up-Citizen-Farm-installe-la-premiere-ferme-urbaine-en,19299 (Accessed: October 15, 2020).
(6) Agnès Espa, Marie. (2016). Toulouse : la Smart City teste une ferme urbaine en aquaponie ! Available at: http://ecomnews.fr/article/6033/toulouse--la-smart-city-teste-une-ferme-urbaine-en-aquaponie- (Accessed: October 15, 2020).
(7) Beatrice, Colin. (2016). Toulouse: La ferme urbaine où comment faire pousser des légumes dans un conteneur. Available at: http://www.20minutes.fr/toulouse/1850535-20160524-toulouse-ferme-urbaine-o-comment-faire-pousser-legumes-conteneur (Accessed: October 15, 2020).
(8) Russeil, Delphine. (2016). [En images] Une ferme urbaine installée dans le jardin Raymond VI, près des Abattoirs à Toulouse. Available at: https://actu.fr/societe/en-images-une-ferme-urbaine-installee-dans-le-jardin-raymond-vi-pres-des-abattoirs-a-toulouse_3683338.html (Accessed: October 15, 2020).
(9) Boffet, Laurence. (2016). Toulouse : une ferme urbaine utilise des poissons pour faire pousser des légumes. Available at: http://france3-regions.francetvinfo.fr/occitanie/haute-garonne/toulouse/toulouse-une-ferme-urbaine-qui-utilise-des-poissons-pour-faire-pousser-des-legumes-1004557.html (Accessed: October 15, 2020).
(10) Le Scouarnec, Jean Marc. (2016). Découvrez l'aquaculture au jardin Raymond-VI. Available at: http://www.ladepeche.fr/article/2016/05/22/2349583-decouvrez-l-aquaculture-au-jardin-raymond-vi.html (Accessed: October 15, 2020).
(11) Decorse, Johanna. (2016). Citizen Farm prend racine au jardin Raymond VI. Available at: http://www.ladepeche.fr/article/2016/05/23/2349661-citizen-farm-prend-racine-au-jardin-raymond-vi.html (Accessed: October 15, 2020).
(12) Russeil, Delphine. (2017). Au cœur de Toulouse, visitez une ferme urbaine où des plantes poussent grâce à des poissons. Available at: https://actu.fr/occitanie/toulouse_31555/au-coeur-de-toulouse-visitez-une-ferme-urbaine-ou-des-plantes-poussent-grace-a-des-poissons_3820505.html (Accessed: October 15, 2020).
(13) Mr Mondialisation. (2016). Il veut populariser les fermes urbaines en alliant poissons et plantes. Available at: https://mrmondialisation.org/il-veut-populariser-les-fermes-urbaines/ (Accessed: October 15, 2020).
(14) madein31. [no date]. Citizen Farm. Available at: http://www.madein31.fr/la-selection-des-entreprises/details/citizen-farm/ (Accessed: October 15, 2020).
(15) Toulouse Metropole. [no date]. CITIZEN FARM : UNE FERME DANS LA VILLE ! Available at: http://www.toulouse-metropole.fr/missions/developpement-durable/plan-climat/le-plan-d-actions-immediat?p_p_auth=eIRiq1lj&p_p_id=101&p_p_lifecycle=0&p_p_state=maximized&p_p_mode=view&_101_struts_action=%2Fasset_publisher%2Fview_content&_101_assetEntryId=16379297&_101_type=content&_101_urlTitle=citizen-farm-une-ferme-dans-la-ville-&inheritRedirect=false&redirect=http%3A%2F%2Fwww.toulouse-metropole.fr%2Fjeudis-de-l-innovation%2Fnacelles%3Fp_p_id%3D3%26p_p_lifecycle%3D0%26p_p_state%3Dmaximized%26p_p_mode%3Dview%26_3_groupId%3D0%26_3_keywords%3Dcitizen%2Bfarm%26_3_struts_action%3D%252Fsearch%252Fsearch (Website not available in 2020).
(16) Leleu, Clémence. (2017). Citizen Farm : quand les poissons font pousser des légumes au coeur des villes. Available at: http://www.18h39.fr/articles/citizen-farm-quand-les-poissons-font-pousser-des-legumes-au-coeur-des-villes.html (Accessed: October 15, 2020).
(17) Bourguignon, Anne Marie. (2016). Citizen Farm. Petit poisson deviendra grand avec son aquarium-potager. Available at: http://www.touleco-tarn.fr/Citizen-Farm-Petit-poisson-deviendra-grand-avec-son-aquarium,19507 (Accessed: October 15, 2020).
(18) ToulouseInfo. (2016). Une ferme urbaine au Jardin Raymond VI. Available at: http://www.toulouseinfos.fr/actualites/23104-23104.html (Accessed: October 15, 2020).
(19) Leclercq, Axel. (2016). CITIZEN FARM : 800KG DE LÉGUMES ET 400 POISSONS PAR AN... SUR 15M2 ! Available at: http://www.informaction.info/iframe-citizen-farm-800kg-de-legumes-et-400-poissons-par-sur-15m2 (Website not available in 2020).
(20) Clarke, Baptiste. (2016). L'aquaponie facilite l'implantation de fermes urbaines. Available at: https://www.actu-environnement.com/ae/news/aquaponie-facilite-implantation-fermes-urbaines-paris-toulouse-gardanne-27630.php4 (Accessed: October 15, 2020).
(21) noova. [no date]. Citizen Farm. Available at: https://www.noova.co/fr/11_citizen-farm (Website not available in 2020).
(22) Fred. (2016). CITIZEN FARM : UNE FERME AQUAPONIQUE SUR 15 M2 CAPABLE DE PRODUIRE 800 KG DE LÉGUMES ET 400 POISSONS PAR AN. Available at: http://www.fredzone.org/citizen-farm-une-ferme-aquaponique-sur-15-m2-554 (Accessed: October 15, 2020).
(23) diccit. (2017). Avec Citizen Farm, poisson est sous le potager. Available at: http://en.calameo.com/read/003458747c11c85143ce2?bkcode=003458747c11c85143ce2 (Accessed: October 15, 2020).
(24) Rimbert, Julie. (2016). La truite et de la tomate mariées dans une ferme urbaine. Available at: http://www.leparisien.fr/informations/le-mariage-de-la-truite-et-de-la-tomate-29-05-2016-5837961.php (Accessed: October 15, 2020).
(25) Angel, Marina. (2016). At Home s'offre 1 000 m2 à Toulouse pour développer sa communauté de start-up. Available at: http://www.usine-digitale.fr/article/at-home-s-offre-1-000-m2-a-toulouse-pour-developper-sa-communaute-de-start-up.N396432 (Accessed: October 15, 2020).
(26) Domez, Hugues-Olivier. (2016). Bientôt un festival « Made in 31 » pour mettre en avant des entreprises innovantes au Quai des savoirs. Available at: https://actu.fr/societe/bientot-un-festival-made-in-31-pour-mettre-en-avant-des-entreprises-innovantes-au-quai-des-savoirs_3674758.html (Accessed: October 15, 2020).
(27) BNP PARIBUS. (2017). Smart City Toulouse : l'Open Métropole. Available at: https://www.bnppre.fr/actualite/marche/20170613/smart-city-toulouse-l-open-metropole-205.html (Accessed: October 15, 2020).
(28) MANOIBEMA. (2015). So Blogueuses 2015 à Toulouse : c’était aussi de belles rencontres ! (part 2). Available at: https://manoibema.wordpress.com/2015/10/18/so-blogueuses-2015-a-toulouse-cetait-aussi-de-belles-rencontres-part-2/ (Accessed: October 15, 2020).
(29) Thuault Ney, Sarah. (2017). L’aquaponie : cultiver ses légumes avec des excréments de poissons. Available at: http://le24heures.fr/2017/02/14/aquaponie-citizenfarm-explications-poisson-agriculture/ (Accessed: October 15, 2020).
(30) Toulouse Business School. (2016). BACH 13 - PIERRE OSSWALD. Available at: http://www.tbs-alumni.com/gene/main.php?base=22&id_news=704&action=details (Accessed: October 15, 2020).
(31) Demeure, Yohan. (2016). Cette ferme aquaponique de la taille d’une place de parking peut produire des centaines de kg de nourriture. Available at: http://citizenpost.fr/2016/11/citizen-farm-ferme-aquaponique-capable-de-produire-beaucoup-petite-surface/ (Accessed: October 15, 2020).
(32) Fonbeauzard. [no date]. Ferme Urbaine... Quand les légumes poussent sur le béton! Available at: http://www.ville-fonbeauzard.fr/fr/toulouse-metropole/ferme-urbaine.html (Website not available in 2020).
(33) Maison de l'Agriculture Urbaine. [no date]. Citizen Farm : 800 Kg de légumes et 400 poissons par an sur… 15 m2! Available at: https://maisonagricultureurbaine.com/ressources-medias/revue-de-presse/lau-en-france/ (Accessed: October 15, 2020).
(34) Lapeierie, Caroline. (2017). Strategie Smart City 2015-2020. Toulouse Metropole. (Document attached).
(35). La Depeche (2018). "Toulouse. La start-up Citizen Farm dépose le bilan". Available at: https://www.ladepeche.fr/article/2018/04/03/2772469-la-start-up-citizen-farm-depose-le-bilan.html (Accessed: October 15, 2020).
Comments and notes
Additional insights
“We tried to achieve a societal ideal: a society in which consumption would be different. And in this sense, we have not failed, because we are sure that the work that we have carried out for five years has left its mark and that some of you have been able to change your habits a little, perhaps in part. thanks to us… ”adds Pierre Osswald" (Ref. 35).