Earlier quoted context omitted.
Not saying my opinion one way or another, but there is definitely a “natural right” just in the simple sense of physically being present before others.
How so? All "rights" are manufactured by humans. We would like to say that "life, liberty, and the pursuit of happiness" are "natural rights", but they're not: a bunch of people just agree that they should be, so they are. (And imperfectly, at that! We wouldn't have capital punishment or prisons if we actually believed in these rights.) And if we recognized "physically being present before others" as a natural right,…
That being said, I'm hard pressed to call desired housing density a natural right.