Spanish architecture firm Zooco Estudio has covered the walls of this Madrid residence with bookshelves that span two levels.
House 6 is a detached single-family home located in northern Madrid. Local studio Zooco Estudio overhauled the residence contrasting white interiors with pale wood cabinetry and herringbone patterned flooring.

The centrepiece of the design is a white shelving unit that extends two floors and wraps around the walls of the house's living room and dining area.
On the lower level, the volume comprises dozens of rectangular cases for storing books, movies and electronics, including a mounted television. A series of narrow cubbies also occupy the space between a glass dining table and entryway creating storage for hanging apparel.
"As a unifying element, a shelf rises colonising both living and lobby spaces," the studio said. "This way we integrate aesthetic and functionality in one single element."
The shelves continue on the upper level with a rectangular volume along a hallway. Pendant light fixtures hang from the ceiling to illuminate the floor below.

In the kitchen, pale oak fronts the cabinetry and details the base of a white kitchen island. White tiles form the splashback behind the sink and cover the rectangular range hood hanging above the island.

A spiral staircase with black metal steps is carved into the wall to create a sculptural focal point within the space.

Upstairs the bedroom and bathrooms are concealed by a wall ...