Unlike other homes, the amazing Truffle House by Ensamble Studio was designed to slightly resemble a cave in which bears would hibernate in. It “sits on a hilltop in Laxe, Spain, and consists of only the necessities, a bed, shower, sink, and kitchenette.” Unfortunately, you won’t find any high-tech gadgetry on the inside. Click here for the first picture in gallery. Here’s how they built it:
To build it, we made a hole in the ground, piling up on its perimeter the topsoil removed, and we obtained a retaining dike without mechanical consistency. Then, we materialized the air building a volume with hay bales and flooded the space between the earth and the built air to solidify it. The poured mass concrete wrapped the air and protected itself with the ground.