No, I'm not so far from you. My size went only for 2 trucks and some good space to work. The area is not too much, the above picture was made from the back fence point and the camera made it appears larger than it is. And a house is planned to be build in the center. With a garage for trucks in the ground floor though A normal way to build is of concrete foam blocks or bricks covered with wooden roof structure and sheet metal on the top. If man want a big factory type of building he uses steel beam structure with sandwich panels steel-mineral wool-steel. Easy to grow up and good insulation. As for me I wanted to cover a wide space (9 meters, about 27 feet) but have a loft to keep parts. Also I like to have strong steel beams above a room to put hoist or winch when pull out an engine. So wanted I-beams anyway. To the moment I didn't plan to have insulation (extra cost) but wanted to keep ability to do it in the future. Due to a possible snow load I had to build everything strong enough. I'm educated as a mechanical engineer but not a constructor. So contstructions seems to me as a hobby. It was interesting to make a steel structure building I have never done before. So I made basic load math, bought I-beams and welded them into the exact parts with flanges to bolt up together. Couple of words about the foundation. Here is a clay. The freeze level is near 1meter, maybe 1.5. But when you build a house it used to be warm inside and it also warm up the concrete. I planned the shed cold. So dug out the slot in the ground of 2 meters deep and of 0.4 meter wide around all the perimeter , put 0.3 meter of sand on the bottom and than filled it up with solid concrete off 4 mixer trucks. So now it's possible to build 3 storey stone house on it. As for the bricks there's a trick. To make it nice-looking (and to make a training to build a house of the same style in the future) I have done just a front wall of bricks. The rest is sheet metal. Taxes... I pay nothing at the moment because it's not registered officially Hope I'll contnue the same for some more years. They must be payed by a cost. But you NEVER know here what the law WILL BE tomorrow. So shouldn't be too fast to be legal. Again, you here CAN'T be 100% legal (F**k!!!)