Copyrights aren't natural rights, they are limited government monopolies created for the purpose of encouraging creative and commercial activity. They make sens

Copyrights aren't natural rights, they are limited government monopolies created for the purpose of encouraging creative and commercial activity. They make sense in publishing because it is easy for other publishers to pirate and profit from original work. But is it actually the case that the copying of architectural designs—that is, the exact reproduction of original buildings—is such a big problem in Europe that this kind of government intervention is necessary?