The city of Cagliari is characterized by strong environmental and landscape elements. Since ancient times, it has developed along the hills and near the coast, following a settlement pattern that has generated blocks mainly composed of terraced residential buildings. These rows of houses address the area's slopes and elevations while also establishing a dialogue with the complex coastal system.

In the early 1900s, during a period of major urban expansion across Italy, a residential neighborhood emerged in the Bonaria hill area. Over time, it became a densely populated yet peaceful and elegant zone. Residences were primarily built for Cagliari’s upper bourgeoisie, featuring well-crafted buildings in a variety of architectural styles ranging from Art Deco to neo-medieval, eclectic to rationalist. Buildings of five or six stories rose, surrounded by gardens and expansive green spaces, populated with tall, mature trees.

It is within this urban context that the “Jeweler’s House” is located—a residence occupying the top floors of a seven-story building with a rooftop terrace. Built in 2018, the building is situated on the southern side of Bonaria hill, facing the sea and the Gulf of Cagliari.

The penthouse, surrounded on all sides by a terrace, is divided lengthwise into two main areas: the south-facing living area and the north-facing sleeping area. The spacious living zone is an open space, with the living and dining rooms to the right, and a kitchen with island to the left, separated by transparent sliding glass doors.

The sleeping area includes a master bedroom with en-suite bathroom and walk-in closet in the northwest, a second bedroom also with private bathroom, and a guest bedroom in the northeast with its own bathroom and sitting area.

A staircase inside the living room, lit with LED strips, leads down to the fifth floor, where there is an annex featuring a living room with kitchenette, a double bedroom, a bathroom, and two balconies.

The apartment’s owner is a jeweler, and his profession served as a guiding thread throughout the design choices, influencing both the atmosphere and the selection of materials and compositions.

The creation of the Jeweler’s House involved various skilled artisans and a wide range of materials: wood, aluminum, steel, porcelain stoneware, marble, glass, leather, velvet, crystal, and plaster. Various combinations of materials and finishes were used to evoke a sense of luxury and to create an interplay of reflections and light, in reference to the owner’s trade.

Large slabs of Calacatta-effect porcelain stoneware were used to clad the walls, adding softness and brightness to the interiors.

The color scheme throughout the apartment is primarily based on a combination of white, black, and gold, echoed in the veining of the Calacatta marble. The floors are covered in white-bodied porcelain stoneware, chosen to enhance brightness. Black is used in selected furnishings, ceilings, feature walls, and the kitchen island to create contrast.

White was also used for the exterior finishes, to preserve formal purity. The large terrace surrounding the penthouse offers stunning views over both the city of Cagliari and the blue Mediterranean Sea and marina. Its spaciousness allows for comfortable outdoor living, with lounges and seating areas illuminated by perimeter LED lighting integrated into the roof structure. Transparent glass doors connect the interior to the terrace, ensuring a visual and physical continuity between indoor and outdoor spaces, allowing the living areas to open outward.

The horizontal flow of the living room is contrasted by a vertical feature wall of golden wooden slats. LED lighting throughout the apartment enhances reflections and interplay of light, giving the space an ethereal and airy atmosphere.

The pursuit of brightness and elegance is also reflected in the choice of furnishings: glass and metal coffee tables with gold finishes, and crystal chandeliers—present in both living and sleeping areas—that add a further touch of refinement to the home.