Houses come in many shapes, but at Grist, we sure do love ’em tiny. The reasons are obvious: Beyond being just. so. darn. adorable, they promote sustainable living, energy efficiency, and serious envy in your lame McMansion-owning neighbors. And they’re hotter than Hansel, as both elite industrial designers and industrious teens alike have engineered marvels of mini to cater to every taste. Here are some of our recent favorites.