PH Freire / Ignacio Szulman arquitecto. Image © Francisco Nocito
In architecture, split-level houses are typically in response to a plot’s uneven or sloping topography. In the case of the houses featured here, their split level interiors are a matter of function, allowing spaces to be virtually separated by dividing them between raised and semi-subterranean floor layouts. For example, adjoining two spaces with a 50cm step up or drop off allows for separation without the use of walls or other physical barriers.