[yayachiken]

What I mean with legal basis is that the laws do not exist yet.

The constitution would allow these laws, even to the point of expropriation. But as long as the laws do not exist there is no legal basis to act on.

In case of conflict, there are some court rulings already, for example the highest court recently ruled that you may infringe on the neighbors property, if you need to insulate your walls in such a way that the thicker walls would then be on the neighbours property.