I think the city is not taking the welfare of the chickens into account here. Removing the roof is no "compromise." Chickens can withstand a lot, but wetness is a chicken killer and it isn't fair to have them trapped inside all day, or for days on end. Can you alter the roof to the property...
I am getting ready to have chickens. We just had our coop installed we are getting that ready. Hoping to find 2 Buff Orpingtons and 2 Black Australorps for our first flock. Best to all!