On Bretón de los Herreros, one of Chamberí's defining streets, this high mezzanine apartment benefits from the light and proportion of a principal floor. The entrance hall retains the architectural signature of Gutiérrez Soto, a landmark figure of twentieth-century Spanish design, while the recent renovation by Alfonso Rengifo has refined every aspect of the home—balancing function, material integrity and lived comfort. Natural stone floors establish a consistent material language throughout the residence. The layout comprises four principal rooms: two generous bedrooms with en-suite bathrooms, a third bedroom, and a fourth space currently configured as a television room or study that converts readily into additional sleeping quarters. A fourth bathroom serves the home's circulation.