HOUSE KASTIL UTARA
Lombok, Indonesia
2025

Kastil Utara is a house perched on the top of a hill, carefully positioned along a ridge that offers 180-degree views of both the sea and the surrounding mountains. It is located in Indonesia, on the island of Lombok, where the tropical climate strongly influences the architectural approach. The materials used in the house are locally sourced, reinforcing its connection to the environment. The stone is native to the area, with a color that blends naturally into the landscape. Local woods such as Ulin and teak are also used throughout the design, adding warmth and durability, while the floors are made of terrazzo, contributing to a cohesive and natural material palette.

The design follows the contour lines of the terrain, allowing the house to integrate seamlessly with its surroundings. From a distance, it almost disappears into the landscape, as the colors and textures of the materials harmonize with the environment. The architecture features a flat green roof, which further enhances this effect—when viewed from above, the house is nearly invisible, appearing instead as part of the natural terrain. Arrival to the house is intentionally subtle and immersive, with the entrance passing through a narrow, cave-like opening made of stone, symbolizing a transition into the hill itself, as if entering the mountain or the landscape.

The layout is straightforward and efficient, with circulation placed along the back of the house so that all primary rooms face forward and take full advantage of the panoramic views. These rear circulation spaces receive sunlight and natural breezes from a garden located behind the house, designed to promote cross-ventilation, reducing the need for air conditioning and supporting a more sustainable living environment. The swimming pool is designed as a sculptural element that follows the natural contour of a ridge extending toward the horizon, its linear form emphasizing the connection between the house and the landscape and creating a unique experience where swimming feels like moving out toward the distant view. The house was designed as a holiday home for a Swedish family with three children, offering them a peaceful retreat that is deeply connected to nature.