Concrete steps toward these goals were not defined during the meeting on Monday. Governing Mayor Franziska Giffey (SPD) affirmed :"Our city must grow in width, height and density in order to provide a home for all Berliners." New construction, including construction in the city center, needs a new acceptance. "It is clear to all those involved that no one can solve the new construction issue alone," said Construction Senator Andreas Geisel (SPD). "It can only be done together with a citywide show of strength." The red-green-red Senate has set itself the goal of building an average of 20,000 new apartments per year by 2030. The state-owned housing companies, cooperatives and private real estate companies are to participate in this project.