> How do you come up with that? It's called "peaceable enjoyment." It's established in common law since the old days of England. Your property rights are not absolute where your actions infringe on neighboring property owner's rights to possess and enjoy their property. > No one need even enter neighboring property. If you can figure out how to build a condo without any noise from the people in the condos, from their cars, or lights from their units shining into the neighbors' properties you might have a case.