Open Call | Tartu

The urban context

The City of Tartu is located in the South-East of Estonia (186 km from the capital Tallinn).

Tartu is an EC Smart Cities and Communities Lighthouse City and joined the Covenant of Mayors in 2014. The goal of Tartu is to become climate neutral by 2050 and to reduce CO2 emissions by 50% by 2030 (compared to 2017). With this aim, the City council of Tartu has approved the first draft of the City’s new Sustainable Energy and Climate Action Plan “Tartu Energy 2030”.

The Annelinn neighbourhood is the largest apartment building neighbourhood in Tartu with over 30,000 citizens (1/3 of Tartu’s population) and is constructed between 1971 and 1990. Within oPEN Lab, oPEN Living Lab Tartu aims to renovate three building units, for a total of 288 apartments in the Annelinn area. All flats are privately owned, but with housing associations already formed by the owners themselves. The population of the area is mixed, both in terms of languages spoken (there are both Estonian and Russian speakers, but there are also several temporary workers coming from Ukraine) and in terms of cultural approaches. A large part of the inhabitants are elderly people, while there are also several youngsters looking for affordable flats.

oPEN Living Lab Tartu: Technical Challenges

Technical Challenge 1

Demand-based ventilation management

Technical Challenge 2

Efficient and secure bike storage


The oPEN Living Lab Tartu has a very ambitious goal to become a positive role model for Estonia by increasing the quality of life in the Annelinn neighbourhood through the renovations implemented via the oPEN Lab project. The final objectives are to:

  • revive the Annelinn area by making it more liveable, creating a new community and increasing its attractiveness.
  • Activate the community, promote renovation, understand residents’ attitudes towards renovation.
  • Co-create the best tools and strategies for renovation and improve existing technologies and processes for implementing a real and effective positive energy transition in the neighbourhood.
  • Increase the indoor comfort and quality of life of the people living there to re-populate the area by creating a sense of community.
  • Develop a smart, optimal and more inclusive renovation model for indoor climate, which is currently not up to standards

Find the Open Call Application Guide here

Apply through this form.

Applicants can ask questions in two webinars organised for the oPEN Living Lab Tartu.

Tartu Open Call Webinars:

  • 20 January 2023, 13:00 – 14:00 EET (CET is 1 hour behind EET), register here.
  • 06 February 2023,15:00 – 16:00 EET (CET is 1 hour behind EET), register here.