I know that chickens are very popular these days ... and even if you're doing high-end design, you may run into clients who want a big vegetable garden and perhaps chickens, too.
So -- if you're going to go that route, the least you can do is have a good-looking chicken coop, like these hand-made ones from the Hobbit™ Hole Store.
They come in different sizes and styles, so that you can decide upon having a whole flock or just a few. Coops have insulation for cold climates, windows, perches, nest boxes, everything you could possibly need. Well, if you're going to have chickens, why not a designer coop?