About CitizenCity

CitizenCity helps cities collaborate around data in a way that is transparent, secure, and responsible. Through practical pilots across Europe, the project shows how trusted data spaces can strengthen collaboration, improve decision-making, and accelerate both the green and digital transition.

The project brings together public authorities, organisations, knowledge institutes, and citizens to develop and test data space environments that serve the public good. The project focuses on translating complex concepts such as data spaces, governance, and privacy into practical and accessible approaches that cities can apply to real urban challenges.

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About CitizenCity
City data sharing

Trusted city data sharing

real cities

Proven in real cities

data framework

Reusable data framework

Building Trusted Data Spaces for Smart and Sustainable Cities

CitizenCity is a European pilot project contributing to the European Data Space for Smart and Sustainable Cities and Communities (DS4SSCC-DEP). The project prepares and tests a shared blueprint that demonstrates how cities can share and use data responsibly, in line with European values and the objectives of the European Green Deal.

By linking European policy ambitions with real-world implementation at local level, CitizenCity helps cities move from strategy to practice while remaining aligned with a common European framework.

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Why CitizenCity Matters

Cities across Europe face similar challenges: fragmented data landscapes, complex digital systems, and uncertainty about how data can be shared and reused in a transparent and trustworthy way. CitizenCity addresses these challenges by showing how trusted data sharing can deliver tangible societal value.

Through its pilots, the project demonstrates how data spaces can contribute to:

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Our Use Cases

eindhoven
Eindhoven

Creating a positive energy district by combining energy, livability, and social data in one platform to support 40,000 new homes by 2040.

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Oulu
Oulu

Building a cross-sectoral dataspace with a digital twin and AI chatbot that helps citizens make sustainable choices.

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Alava
Álava

Using data-driven road management to improve winter safety and mobility through real-time alerts and thermal mapping.

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What Makes CitizenCity Different

CitizenCity is distinguished by the strong involvement of universities and knowledge institutes, combined with a clear focus on co-creation and sustainable scalability. Public authorities, private organisations, and citizens are actively involved throughout the project, ensuring that solutions are grounded in real needs and practical constraints.

Together with its partners, CitizenCity develops methodologies, governance models, and tools that guide cities through collaborative innovation. These outputs are designed to be reusable and scalable, enabling other European cities to apply the lessons learned within their own local context.

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Our Impact

Serving as a preparatory action, the project supports the development of the European Data Space for Smart and Sustainable Cities and Communities. By connecting local use cases and stakeholders, the project supports stronger data governance, improved interoperability, and clearer pathways towards sustainable urban development.

Beyond technology, CitizenCity contributes to everyday urban challenges by enabling safer mobility, more efficient energy systems, and better-informed decision-making, while strengthening trust between public authorities, private partners, and citizens.

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City data sharing

Trusted city data sharing

real cities

Proven in real cities

data framework

Reusable data framework

Explore the Project

CitizenCity is designed as a learning platform for cities and stakeholders across Europe. The website serves as a central knowledge base and reference point, bringing together insights, methods, and real-world examples that help others understand, apply, and replicate trusted data spaces in practice.

Visitors can explore dedicated sections on governance, stakeholder engagement, methodology, privacy and security, use cases, and project results, connecting European data ambitions with concrete urban challenges.

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Interested in applying trusted data sharing in your city or region?

CitizenCity works with public authorities, partners and innovators to turn data into practical urban solutions. Get in touch to discuss use cases, collaboration opportunities and what implementation could look like in your context.

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