In the quiet, established neighbourhood of Aravaca, this duplex penthouse occupies the top two floors of a well-proportioned building on a tree-lined street. The residence is organised around a sequence of spaces that unfold with clarity and restraint. An entrance hall finished in polished limestone leads to a double-height living area, where full-height glazing frames views of the surrounding greenery. The kitchen, positioned to one side, is detailed with honed marble surfaces and integrated cabinetry, maintaining the same level of precision found throughout the home. The upper level is dedicated to the private quarters. Four bedrooms, each with en-suite bathrooms, are arranged along a central corridor that culminates in the principal suite. Here, a dressing room and a bathroom clad in grey veined marble open onto a private terrace, a quiet outdoor space sheltered by mature trees. A second terrace, accessible from the living area, extends the interior outward, offering a place to gather or retreat. The apartment is served by a lift and retains the character of its original construction while incorporating contemporary detailing and comforts.