The picture above us is the old dry stone milk house where the milk was kept. It's now minus the ivy and you can see holes where a lean to roof used to be. The stones are held together with packed earth or clay. The farmhouse itself was made this way and not one bit of mortar was used. The people long ago used to build houses for next to nothing. Talk about sustainability. Just clear a piece of land, get some stone and build yourself a dwelling.