My toolshed is larger than most of those "homes" and it only cost me $1000

I've fielded a number of questions about DIY building tiny homes like these from people (mostly idealistic young college kids used to sharing a tiny dorm room and riding buses everywhere) who think a tiny house is a good idea. Most get frustrated when reality strikes (McMansions are popular for very good reasons!) but some genuinely want to live this way and it's no sweat off my back.