As part of building a small city block in Leiden, consisting of 18 residential blocks, the architects of the 24H Architects have designed two houses. Despite the fact that the rules of construction of such blocks are registered in great detail, they allow architects to exhibit their talents in both the design of the facade, and in the interiors. It is interesting that such quarters are built in Holland, and not only there is not one hundred years. Seemed to have all possible options should be implemented. But it turns out, is not it. And then, and new technologies arrived.