Hi all, My first post here, but I used the forums a lot when I was taking care of 16 beautiful hens in Berkeley, California! I'm writing a paper about henhouses in a zoning ordinance. I know that I want to encourage people to build henhouses in their yards as an "accessory" to their homes, but I'm trying to figure out if it would also make sense to allow henhouses/coops in commercial or industrial areas, as the "primary" use of a lot -- with regulations that would ensure humane living conditions for the hens. Has anyone heard of an urban commercial (for-profit or social enterprise) egg farm? I know that a number of businesses around the country are trying to make profitable urban farms on rooftops or in greenhouses, but I can't find any commercial chicken-raising operations. Thank you!