Why German building projects run over time and budget

Berlin’s new airport? Planned for 5 years, finished in 14. Stuttgart’s central station? Still under construction after 16 years. Hamburg’s concert hall, the Elbphilharmonie? Nine years instead of three. And the costs? Sometimes 10 times higher than promised. Or take Cologne’s opera house. Built in the 1950s as a symbol of modern democracy, it was a cultural