Mine's just a big 17x17 room with a glass roof, the only nod to aesthetics is that it is constructed from alternating layers of black and yellow Rockwool. I have 6 apiaries along the back wall and all my machines along the left hand wall. Liquid DNA is in the cellar underneath, but I couldn't find a good place to put a stairwell so it's just a hole that I get in and out of with a jetpack.