this first started in 2d but I wanted more of a challenge so I made into 3d, we made it in 2d in my CAD class, but I went a step further and made it in 3d. by far my favorite is the brick house, I changed my original design many times. if you have any questions i'll answer them as soon as I can.
if you want my 2d files I would be happy to share them with you