Technically I don't live within the town's limits as I'm on a rural route but I have neighbours. I don't trust my hens wondering in their yards more so than the neighbours coming onto my yard. As for the rooster it was mainly for chick production so I could have my hens have chicks instead of having to purchase new ones ever few years.
And can you explain the ventilation a tad bit more?
1 sq foot of venting per bird. More is better. Search here for woods coop for ideas.
Go big, you will regret it later if you start too small.
My coop, linked to left is wide open on one wall, big gable vents and 3 opening windows.
Welcome to byc
Gary