On the side of a large roundabout in Madrid, Spanish architecture firm Rafael de La-Hoz has realized the eye-catching Oxxeo project, a five-story office building with a LEED Platinum Core & Shell certification. The energy-efficient building makes the most of its wedge-shaped plot with an asymmetrical, three-sided design, of which the geometry is emphasized with the building’s three large-scale, lattice facades with a white, rhomboidal pattern. In addition to creating greater visual interest for Oxxeo, the sculptural facade also helps mitigate unwanted solar gain.
Spanning an area of 14,299 square meters, the Oxxeo office building was created with efficiency in mind, from the efficient use of energy to the smart use of space. The building’s double facade includes a glass curtain wall that floods the interior with natural light and reduces reliance on artificial lighting, while the latticed exoskeleton provides solar shading. For flexibility in the floor plan, the architects located supporting pillars inside the vertical core and in the chamfered corners to maximize the seemingly pillar-free office space.
“This building has no other concept idea than the one shown in its own construction,” Rafael de La-Hoz explained in a project statement. “This way, it is the structure, or rather the construction of its structure, or the details of the facade, or the knots and joints which generate its architectural form, or the concept.”
The intersecting points for the rhomboidal lattice are spaced out at every 8.1 meters and serve as the supporting elements for the perimeters of the slabs. The corners of each rhomboid are curved to soften the facade’s appearance. The minimalist exterior is matched by a clean interior design. The building is also topped with a green roof.
Photography by Alfonso Quiroga and David Frutos via Rafael de La-Hoz arquitectos