Research & reports

Landesdenkmalamt Berlin · Landesdenkmalamt Berlin (berlin.de) · Germany

A short notice issued by the Berlin State Heritage Office on 27 July 2026. It reports that on 26 July 2026 the 48th session of the UNESCO World Heritage Committee, meeting in Busan, South Korea, inscribed the Waldsiedlung Zehlendorf as the seventh component of the World Heritage site 'Berlin Modernism Housing Estates'. The estate was built between 1926 and 1932 by the housing cooperative GEHAG and comprises 1,917 dwellings — 1,108 in multi-storey blocks and 809 single-family houses. The architects were Bruno Taut, Hugo Häring and Otto Rudolph Salvisberg, with the open spaces designed by Leberecht Migge and Martha Willings-Göhre. It lies around the U-Bahn station Onkel Toms Hütte on line U3 and along Argentinische Allee in the Steglitz-Zehlendorf district. The nomination process began in 2021.

· Urban Planning · Germany (Berlin)

Critically reflects on the transformative potential and democratic character of the Berlin Food Policy Council (Ernährungsrat).

Leimkühler · Urban Agriculture & Regional Food Systems · Germany (Dortmund)

Examines the food network of the city of Dortmund and how it can support the transformation of urban food systems.

Trenkner M., Kiesel A., Bauerle A., Lewandowski I. · Biofuels, Bioproducts and Biorefining · Stuttgart, Germany

Analyses the technical potential of urban biorefinery concepts for recycling plant nutrients from waste streams and wastewater in a German metropolitan region to close the urban-rural nutrient loop.

Gargaro M., Harris Z. · Food and Energy Security · United Kingdom

Even on renewable electricity, vertically farmed lettuce emitted about 0.93 kg CO2e/kg versus about 0.57 for UK field farms, with higher impacts in all but one category (water) and roughly twice the land footprint.

Lecole P., Preget R., Thoyer S. · Ecological Economics · France

Premised on the economic fragility of small market gardens and their need for public support, the study compares France's coupled aid program with a small-farmers subsidy scheme, reflecting that the sector struggles to be self-sustaining without policy support.

· MDPI · Spain / Worldwide

Worldwide survey and case studies in Spain (Valladolid and Segovia) analyzing citizens' perceptions of urban agriculture and its contribution to food security. Collected over 250 responses from nearly all continents.

Pierluigi Siano, Isam Shahrour, Silvano Vergura · Journal of Urban Development and Smart Cities · Germany

This study presents a participatory Analytic Hierarchy Process (AHP) framework for evaluating urban agriculture in compact cities, based on a two-stage German case design. A European expert survey (35 responses) identified priority sub-criteria, and a German stakeholder survey (141 responses) weighted these criteria. The AHP structure prioritized the environmental dimension (42%), with biodiversity receiving the highest priority and food quality and safety the lowest.

Sandra Mallet, Baptiste Colin, Thomas Zanetti, Marc G. Dumont, Annette, Groux · HAL (Le Centre pour la Communication Scientifique Directe) · France (Bordeaux)

The TransUrba project investigates how different temporalities of action in urban space can be articulated by studying temporary urbanism initiatives. Through an analysis of three areas in France (Bordeaux, Lyon, and Lille metropolitan area), the project aims to understand how temporary urbanism is implemented, its innovative features, its impact on urban space, and how local public action can strengthen transitional urbanism.

Bernd Bonfert · Environment and Planning D Society and Space · Europe

This article investigates the role of 'commons networks' in organizing and scaling a commons-based economy, focusing on community-supported agriculture and energy communities in the UK, Germany, Sweden, the Netherlands, and Belgium. Data was collected from qualitative case studies using interviews, observation, and document analyses. The study reveals a trend towards centralization in network governance, different scaling approaches between the food and energy sectors, and challenges of commodification and institutionalization.

Micol Sonnino, Simona Zollet · Urban Planning · Italy (Rome)

This article investigates how framing urban agriculture as a "common good" shapes governance and fosters participatory processes in Rome, Italy. In October 2024, the City of Rome approved a new regulation on urban agriculture, marking an evolution in its legal framework. Field research, including interviews and archival data analysis, found that urban agriculture practices in Rome exemplify collaborative governance, enabling cooperation between citizens and local government.

Yaryna Onufriv, Halyna Lukashchuk · Środowisko Mieszkaniowe · Ukraine (Lviv)

In Lviv, Ukraine, urban gardening practices have a historical presence, with the "Nursery" project recently initiated by NGO 'Plato' at the historic Zalizna Voda Park nursery. Despite this, a portion of the historical greenhouses remains dilapidated. Students and teachers from Lviv Polytechnic National University developed a project to restore these greenhouses, aiming to create a modern ecological space. The development of urban gardening, involving the city community and internally displaced persons, is considered important for unification, psychological rehabilitation, and adaptation, requiring specific landscape architecture techniques and evidentiary studies.

Patricia Abrantes, Luís Moreno, Maria Lucinda Fonseca, Burcu Borhan Türeli, Christos Stergiadis, Gábor Szüdi, Martin Felix Gajdusek, Carolin V. Zorell · City and Environment Interactions · Europe

This study examined how governance influences inclusion and long-term viability in seven community gardens in Portugal, Türkiye, Austria, Hungary, and Greece. Using a qualitative comparative design with 65 semi-structured interviews and policy analysis, findings showed that community gardens with stronger relational and procedural governance demonstrate higher levels of inclusion, particularly for women, migrants, and low-income residents. However, weak vertical policy integration across local, national, and European levels in most cases limits their broader systemic impact.

María Antonia Fernández Nieto, Jose Rodriguez, Jorge Gallego Sánchez-Torija · ZARCH · Spain (Madrid)

This article examines how Madrid's municipal markets are adopting new strategies linked to sustainable food systems in response to competition from supermarkets and online commerce. It highlights how citizen movements and municipal policies, including urban gardens and agroecological cooperatives, are fostering circular economies, responsible consumption, and urban resilience. The research positions markets as social mediators that connect diverse actors and balance economic interests with collective benefits, serving as instruments for regenerative urbanism and food equity.

Marco Focacci, Isabella De Meo, Alessandro Paletto, Fabio Salbitano · Agroforestry Systems · Italy

A study analyzed urban plans, national laws, and regional legislation in Italy, along with interviews with decision-makers, to examine the occurrence of Urban and Peri-urban Agroforestry (UPAF). Findings showed that 4 out of 140 Italian cities intentionally included agroforestry in voluntary green plans, and 12 cities had incidental UPAF elements in compulsory documents. This indicates agroforestry is present but not widely incorporated, with grass-root organizations and knowledge hubs being crucial for its promotion.

Silvia Barbero, Federica Larcher · · Italy (Turin)

This chapter explores the role of the Turin Living Lab in testing nature-based solutions (NBS) in the Mirafiori Sud district of Italy. Local schools play a significant role in testing these solutions. Seven NBS types have been implemented, including new soil, urban horticulture, aquaponics, green roofs and walls, and green corridors.

Curnier, Sonia, Berrada, Reda · ArODES (HES-SO (https://www.hes-so.ch/)) · Netherlands (Amsterdam)

This chapter stated that creating special places in landscape architecture requires investment and investigation. It presented a spectrum of special projects, ranging from the private rooftop garden Groenmarkt in the historic center of Amsterdam, Netherlands, to the public outdoor pool Järvabadet in the multiethnic suburbs of Stockholm, Sweden.

Mercedes Muriel Sáiz · Dialnet (Universidad de la Rioja) · Spain (Madrid)

This article examines the phenomenon of urban gardens from a socio-community perspective, based on a methodology combining a literature review and participant observation in the community garden Ensancha el huerto (Alcorcón, Madrid). The analysis shows that urban gardens operate as micro-ecosystems of mutual support and learning, but the study also highlights risks associated with institutionalization, commodification, and legal insecurity surrounding such initiatives.

Corina Başnou, Geovana Mercado, Åsa Ode Sang, Thomas B. Randrup, Verónica Fabio, Adrián Cabezas, Arnau Lluch, Marc Montlleó, Juan Miguel Kanai, Riccardo Saraco, Olívia Bina, Tom Wild · Nature-Based Solutions · Europe

An overview and guidance for air pollution indicators in nature-based solutions (NBS) for urban green planning and public health were provided, using three case studies in Europe and Latin America. The study noted that approaches including multidimensional indicators in research, planning, and policies are limited, and national standards for some air pollutants are missing with little evidence for health effect thresholds. Findings also indicated that knowledge of pollutant uptake in edible plants can suggest potential human exposure risks.

Mais Jafari, Rolf Morgenstern, Jonas Runte · · Germany

This chapter analyzed the co-creation pathway of Nature-based Solutions (NBS) in the Dortmund Living Lab, focusing on urban gardening, food forests, and biodiversity. It critically illustrated missing dimensions that hinder innovation, such as business opportunities, legal frameworks, and planning conditions. These identified gaps indicate challenges in governance and implementation for social innovation through NBS.

Grażyna Wiejak-Roy, Jaideep Roy, D. Andrew · Land Use Policy · Poland (Warsaw)

This study examined the market for allotment gardens in Warsaw, Poland, using a mixed-method approach including thematic archival analysis of regulations and hedonic regression modeling on posted offers. The findings indicate a poor transaction framework, pricing sensitive to legal and illegal private investments, and prevalent illegal rent-seeking on land. Additionally, increasing investment in allotment gardens was found to reduce biodiversity.

Julián Briz Escribano, Isabel de Felipe Boente · Revista española de estudios agrosociales y pesqueros/Revista española de estudios agrosociales y pesqueros · Spain

This study addresses various climate change-related functions and climate issues, particularly in urban areas. A holistic analytical method for green infrastructure is proposed as a nature-based solution, based on its structure, behavior, and functioning. Dimensions emerging with climate change and Nature-Based Solutions (NBS), such as urban agriculture and agrifitness, are identified, and the situation in Spain is described.

Ana María Bartolomé Sualdea, Teresa Briz, Beatriz Urbano · Sustainable Development · Europe

This study analyzed socio-economic variables from 100 European regions to understand how urban agriculture (UA) development within Research and Innovation Smart Specialisation Strategy (RIS3) benefits regions. A binary logistic regression found that a 1% increase in the population over 65 could lead to a 72.75% increase in UA. ANOVA results indicated that regions benefit from UA in RIS3 through active aging, diversification, alleviating urbanization pressure, technology development, and improved governance and social capital.

Dennis Raphael · Policy Press eBooks · Canada; United Kingdom

This chapter documents the growth of charitable non-governmental responses to food insecurity in Canada and the UK, including food banks, food diversion schemes, and community gardens. It is shown that these responses are problematic as they fail to address the economic and political causes of food insecurity. Further failures associated with charitable responses include the experience of stigma and degradation by food bank users and the promulgation of the belief that food insecurity is being addressed.

Jan Szturc, Tomáš Mašíček, Adéla Navrátilová, Jana Kozlovský Dufková · Journal of Agriculture Food Systems and Community Development · Europe

This study explored the production potential of urban farming in Olomouc, Czech Republic, using spatial analysis to identify suitable spaces. Results indicated that 408.04 hectares of currently unused land could be repurposed for urban farming, yielding 7,099.9 tons of vegetables. This production could meet 42.68% of the city's total vegetable demand, though detailed analysis is always necessary for specific areas due to varying potential.