The box with the unbuilt houses has had two of them built and these can be seen in pictures. I am not sure if the other houses in the box are complete or not. Locomotive was bench tested and working. Nice lot of N scale trains and accessories. You are buying what is listed in the title and pictured here. I have taken numerous pictures of this item, and should you require more information please feel free to email me and I will do my best to answer any questions. Because grading is subjective to each individual, it is important that you review all pictures closely. If there is some damage or missing parts I will do my best to always mention what I see. All items I offer are sold as-is, as pictured, with no returns, so please look at the pictures ask questions and judge it for yourself.