Do you mean modular Tiny Houses where two or more Tiny Houses are attached together? Not yet, but I have been intrigued by the thought lately. That is because

Do you mean modular Tiny Houses where two or more Tiny Houses are attached together? Not yet, but I have been intrigued by the thought lately. That is because it may very well be cheaper to acquire two trailers instead of one long trailer, which would mean less of a weight restriction and much easier Tiny House moving management. I think you could have a clever design where you used vaccum insulated panels and some kind of seal at an intersection, I'm certain this has been solved by engineers before. We have to remember NASA was building Tiny Houses in orbit long before this became a terrestrial trend. I'm already using a material invented by them called aerogel (thin strips!) to thermally isolate the studs to prevent thermal bridging, it'll cost me just 1300 to raise the R (insulation) value by a min of 10% - 20%.