The majority of the planned 150-meter-high skyscrapers will probably never be built. The state of Berlin has announced that it will not enforce the corresponding urban development contracts against the market. Of the 13 planned skyscrapers, 10 remain after modifications to the plans – eight of which have construction rights. Investors in the shopping center Alexa have announced several times since 2007 that they would sell their respective shares in the plot to an investor interested in building a high-rise. Since 2010, there have been no indications of possible investors.