OOIIO Architecture has applied varying tones of stonework to the irregularly stacked blocks that make up this house in central Spain (+ slideshow).

The building comprises a series of rectilinear volumes that are staggered in arrangement, vary in scale, and boast different tones and textures.
The Madrid studio wanted the surfaces to resemble the faceted crystal formations found in minerals, so wrapped them in a combination of neutral-toned travertine and sandstone.

The aim was to give the dwelling a "quiet and elegant" appearance, according to OOIIO, which named the building House R+ A Mineral.

The 242-square-metre family house is located on a residential street in Mora, a town in Spain's Castilla-La Mancha region, and is sandwiched between existing homes with similarly coloured facades.
"The house plays with this discrete urban situation surrounded by other quite simple buildings, becoming a little find, something different that the pedestrian will discover by chance, in the same way that a geologist finds precious minerals," said OOIIO.

"Its spaces have a tectonic configuration, sticking to each other like rock crystallisation, coming from a great central space where the whole home revolves around," added the team.

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Rooms are arranged around a large central dining area, where an unguarded staircase made from concre...