I plan to get my chicks next spring, using this coming winter to research, select the breeds I want, design and build the coop, build the run, etc. I would like to have about a dozen chickens, with room to grow. How big of a coop do I need? I plan to fence in my new garden (we just moved) and fence a chicken run around it, making the run 3 feet wide all the way around. The coop will be in the middle of one of the longer sides, with doors at both ends. Should I leave the coop at 3 feet wide and just make it as long as I need? Or should the coop end up wider than the run? I will also be fencing my garden into four plots for rotation; one plot will be for composting, and the chickens will have access to it. Will this be enough of a run? The outer run including coop would be almost 500 square feet, plus about 250 square feet of composting garden plot. I will be researching the breeds extensively, but what would y'all recommend based on personal experience? I want good eggs, docile temperament, good around kids because I know my kids will practically live in the coop because they LOVE chickens, and it would be fun although not necessary if we had pretty chickens and pretty eggs lol. I also want to connect my coop to my greenhouse, utilizing the chickens' body heat to help heat the greenhouse in winter. Anybody have experience or ideas about this? Thanks in advance for any help!!