Question: what is the most expensive building in the world
Answer: Rank Building City Country Architect / designer Current owner ( s ) Height Floors Built Construction cost ( US $ / sq meter ) Total construction cost ( billion US $ ) Construction cost ( adjusted for inflation -- 2015 dollars ) ( billion US $ ) Abraj Al Bait ( Mixed ) Mecca Saudi Arabia Dar Al - Handasah Saudi Arabian Government 601 metres ( 1,972 ft ) 120 2012 15.