Sorry. I misstated. The cost of building did not include land. The comparisons are solely the cost/sq. foot that came back from the contractors after the bidding. In Europe, a concrete building might cost 125-150% of one in the US. A building made of steel might cost about 150% of one in the US. A building made of brick will cost about 175%. As the type of construction trends towards longevity, the ratio between its cost in Europe compared to its cost in the US rises. This is due to labor and energy.