Ah, I see what you are saying: you think that suburbs are
not planned down to the most minute of details?
I don't know where you live, but I bet if you read a copy of your local zoning code, and have a look at the zoning map, you will probably find that yes, your suburb is very, very heavily regulated, including parking minimums, minimum floor/area ratios, setbacks, uses, and so on and so forth.
Probably less than some HOA's demand, but still a lot of details. I too am not the kind of person who relishes that level of control, but I suppose some people like it.