SOFIA DEVELOPMENT ASSOCIATION was founded as non-profit organization with the decision 348
of the Sofia Municipal Council to work for the sustainable development of the capital.


 The new challenge is here!

Sofia Development Association and Sofia Municipality, with the support of Europeana, launch a hackathon “The Challenge of Sustainability and Social Justice”, the grand finale of which will be held live on June 8, 2023. The hackathon challenges participants to look for bold technological and social innovation solutions that guide the vision for a next generation transport services, access and cultural heritage preservation. These areas are powerful catalysts for cities and regions in times of rapid urbanization, digitalization and individualization.


If you are interested in sustainability technology and innovation, and if you have ideas that can improve our urban environment, take part in the hackathon with a team of 2 to 5 people in order to propose solutions for cleaner mobility and environment, or for sustainable use of cultural heritage.

What can you receive?

The ideas with the highest scores will be awarded total financing of 15,000 BNG (7,500 Euro) provided by Sofia Municipality, for further development and implementation of the solutions.

Other non-financial awards will also be provided.

What are the challenges?

-       Programming the cycling city of the future.

-       Creating tools – a bridge between citizens and transport operators.

-       Looking into the past to rethink the future - historical photographs and contemporary urban mobility.

-       Green sustainable future and environmental solutions - Biodiversity Databases.

Detailed information about the competition - program, conditions for participation, challenges, jury and final, can be found on the page of


INNOAIR project is co-financed by the European Regional Development Fund through the Urban Innovative Actions Initiative.        

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