For and from citymakers around the globe

use our platform to explore sustainable city making.

That's a wrap on 2025!

700+ citymakers, 440+ cities, one shared mission.

Closing the Digital Divide

An interview with citizen participation expert Adrià Duarte (UCLG), exploring how cities can use digital tools to strengthen local democracy, and put human rights at the centre of digital transformation.

e-sabha app

Connecting Communities with Local Authorities and Government Agencies on a Single Platform.

C6 Finland - Finnish Alliance model

A bold new experiment in multilevel collaboration

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use (urban sustainability exchange) is a knowledge exchange platform dedicated to sustainable city making. use connects citymakers and encourages the exchange of ideas and experiences to effect positive sustainable change.

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441 cities online.

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Case studies

564 case studies online. See all
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Swapmuseum
Puglia, Italy

Swapmuseum

Culture that rewards your time
Quinto Centenario Cycle Avenue
Bogotá, Colombia

Quinto Centenario Cycle Avenue

The C40 Cities Finance Facility is supporting a cycling transformation in the city of Bogotá by providing technical assistance to the city administration to help fund new high-quality cycling infrastructure.
"Prepare before it’s too late": learn to live with earthquakes
Kocaeli (Province), Turkey

"Prepare before it’s too late": learn to live with earthquakes

After the Marmara earthquake in 1999, the City of Kocaeli decided that living with risk cannot be business as usual. The city is using risk mapping to revisit its development priorities. Moreover, the city is engaging the community in innovative public awareness efforts.
Solar powered schools
Hyderabad, India

Solar powered schools

The project aims to provide low-carbon power supply for public buildings and their neighbourhoods.
Transitional City Programme
Christchurch, New Zealand

Transitional City Programme

A transitional city programme includes support for recovery after earthquakes in three key areas: social, sense of place and business. The programme also contains elements for long-term recovery such as testing new ideas, enhancing community resilience and creating a new identity for the city.
Berlin Climate Citizens' Council
Berlin, Germany

Berlin Climate Citizens' Council

The Berlin Climate Citizens' Council explored strategies to meet the city's climate targets.

Community

709 citymakers online. See all
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Office of International Relations Shiraz Municipality
Shiraz, Iran

Office of International Relations Shiraz Municipality

Institution | City Administration
Vineet Goyal
Hyderabad, India

Vineet Goyal

Individual | Director
Cordoba, Argentina

Patricia Morla

Individual | Concejal
Barcelona (ciudad), Spain

Laura Trujillo

Individual | Officer
Seoul Solution
Seoul , South Korea

Seoul Solution

Institution | Think Tank
Kainak
Istanbul, Turkey

Kainak

Institution | Co-design Studio