The Strategy Unit in the City of Tampere and the political actors of the city have defined population scenarios for 2030. There are three different scenarios: 1) Moderate: the population grows with approx. 2 166 inhabitants per year, 2) Strategic: the population grows with approx. 3 504 inhabitants per year and 3) Great: the population grows with approx. 5 150 inhabitants per year. MDI drafted scenarios per age groups to make these scenarios and studied their effects on the economy, investments, renovations and housing.