We now have 3 chickens and a chicken coop that I built last Saturday in 98 degree weather :)
It is almost complete. I just need to enclose the front and put a door that can be opened or closed via a pulley system from outside of the coop when the chickens go into their roost at night.
I live in a subdivision but I never saw anything in our covenants that restrict poultry, although I am sure some of the neighbors would frown on it if they knew we had them (only a matter of time, I'm sure) but I say 'Neighbors be damned!'. I owe twice as much on a mortgage that has lost half its value due to the market crash so I might as well get some use out of it.
The chickens are contained and out of sight so there shouldn't be any issues but with some of my nosey neighbors, you can never be too sure about anything.
We'll see how the experiement goes over time ...