> More distance and acoustic isolation from neighbors. A larger property with a house in the middle of it separated from others by space means you hear your neighbors less and they hear you less. It makes your home a little more of a sanctuary.
This purpose does not necessarily need to be serviced by a lawn, which is just a patch of grass.
I'd read this short story, where a strange asphalt-covered parking lot planet is discovered and subsequently herbaformed[0] by an eco-hippie expedition ship (probably named 'A weed is but an unloved flower' in Iain M Banks fashion[1])
[0] maybe there's a 'green' non-evil version of the Evil Gray Goo
