Casa DH is a minimalist residence located in Madrid, Spain, designed by Plantea Estudio. The transformation begins with the clearing of the three main areas located between the facade and the first courtyard, now forming an open, flowing space that encompasses the entrance hall, kitchen, living room, and a movie-watching area. Further into the home, the bedrooms and utility areas open up to interior courtyards with walls finished in mustard-colored lime mortar, enhancing the private quarters with warmth and brightness. A designated area for storage and laundry effectively separates the living spaces from the sleeping quarters.

Adjacent to these areas, a multi-purpose room serves both as a workspace and guest room, complete with its own toilet facilities. The private family spaces conclude with two bedrooms at the rear of the home, including a master suite featuring a dressing area and an ensuite bathroom. This master suite is especially notable for its luxurious bath and shower area situated by a window, creating a serene retreat. In terms of materials and aesthetics, the project marries historical elements with modern additions. Original architectural features such as doors, windows, and moldings have been carefully restored and repainted in a subtle earthy white tone.

The flooring throughout, except in the bathrooms, is crafted from wide Douglas pine boards finished with a matte varnish, lending a natural and understated elegance to the home. Contrasting these more timeless elements, the fixed installations include striking coral red marble sinks and kitchen units made from a combination of stainless steel and chestnut wood, providing a durable yet stylish backdrop. The decor is punctuated with significant pieces of contemporary design furniture and lighting, adding a layer of modern sophistication. Notable pieces include the Strips modular sofa by Cini Boeri, the Parentesi lamp by Achille Castiglioni, and the K65 stools by Alvar Aalto, alongside modern offerings like the Chair 01 and Triangolo chairs by Frama, and the Puffy armchair by Faye Toogood.