Old Hickory Buildings offers rent-to-own storage buildings and barns in various sizes, finishes, roofing choices, etc. - that's who we went through to buy the building we're converting into the girls' coop. For the materials to build a coop of lesser quality at the same size, we were looking at around $2000. We bought the building and the extra materials needed for conversion for less than that, and they delivered and leveled it for free. I wouldn't recommend something like that for a few birds - but we have a starter flock of 30 and I'm certain chicken math will kick in at some point, so the added room will be a huge benefit for us personally. The boys have their own run and I'll be building their housing from the leftover materials from the girls' nesting boxes.