Would you be so sanguine about "if he bought it he can do what he wants with it" if he were upwind of you, and kept a pig farm or something? What if your child were allergic to bee stings, and he kept bees on land he owned near you?
Ownership isn't a free pass to do whatever you want, and the neighbors can suck it.
Ownership isn't a free pass to do whatever you want, and the neighbors can suck it.