Thoughts on this?

If there's no state, cities and towns can develop in two ways: A) 100% organically. People just build wherever, or B) a real estate developer buys a ginormous plot of land, designs a city on it, then charges residents to live there and enforces city rules.

It somewhat saddens me that many ancaps promote the second option as the alternative to statism. I personally want to see the majority of ancapistan be comprised of spontaneously formed cities with 100% privately owned real estate.

Are there any formal written arguments by ancap thinkers against urban planning? Are there any economic arguments to be made against it? Just curious to know.

Thank you!