Architecture is being invented just like one invents a car or a plane. It has no boundaries and can be exported like any other creation. Sites never compelled a predetermined architecture.
Architecture has no public interest but private, except for some public buildings or monuments.
It is the synthesis of all arts including every discipline and in that regard it should be free and should only obey to technical constraints, security, hygiene and land planning.
But Human beings have a different judgment. Deep frozen in the past and crazy about tradition, they added such useless constraints that any evolution seems to be impossible. Housing is yet the basis cell of any society is currently the only field where progress, especially in France, is almost impossible, in the global indifference of users and most of architects.