Pokémon Go: Who owns the virtual space around your home?

I can't put a billboard on your house without your permission, but I can put a Poki(C)stop there. As real and virtual worlds collide, that is causing problems

When a virtual space overlaps a real-world space, then whose space is it, and who controls what is created as a result? The success of augmented-reality game Poki(C)mon Go has forced this question into focus. Since its launch less than a week ago, groups worldwide have struggled with the game's unforeseen ramifications.