Curved Walls, Open Hearts, and Framed Skies

Sky Vessel House, a remarkable residence located in the suburban area of Fukuoka, Japan. Designed by NKS2 Architects and completed in 2022, the home spans 286 square meters. It was created for a couple who not only wanted a comfortable living space but also needed ample room to host guests, whether for work-related gatherings or personal hobbies. In addition to the indoor space, they desired a large open garden for parties and other social events. The house sits in a densely populated neighborhood, surrounded by homes and apartment buildings, with a busy road running along the front. With privacy and noise as major concerns, the architects took on the challenge of creating a design that could shield the interior while contributing positively to the surrounding environment. The result is a home that appears closed off from the outside, yet offers a surprising sense of openness and connection within. One of the home's defining features is its dramatic, vessel-shaped tiled roof that sits atop a circular, distorted perimeter wall. This distinctive roof form helps block views from the outside while inviting the sky into the heart of the home. Around the outer edge of the property, the large site allows space for a lush garden. Openings along the perimeter wall are kept to a minimum, limited to high side lights and small ventilation windows, while the interior plaster walls gently curve, creating a gallery-like backdrop for artwork and decorative pieces. In contrast to its closed-off exterior, the interior courtyard side features a variety of large openings in different shapes and sizes. These allow natural light, wind, and views of greenery to flood the living spaces. This balance between shelter and openness gives the home a calm, serene atmosphere, surprising guests with how bright and welcoming it feels once inside. Supporting the expansive roof are laminated timber beams, arranged radially from a central point. To ensure comfortable proportions in every space, the distance from the center to the outer wall varies, adjusting both the width and height of different rooms. The perimeter wall is symmetrical in both the horizontal and vertical directions, made up of two radii. On the side facing the street, the garage and private entrance have lower ceilings, while the living and dining areas, designed for gathering, feature much higher volumes, creating spatial contrast and a dynamic interior flow. Sky Vessel House is more than just a private residence. It's also a gallery, a social space, and a place to connect with nature. Its curving tiled roof captures rainwater, reflects sunlight softly, and frames the sky above. Sitting on the bench in the courtyard and looking up, you feel immersed in nature, almost as if you've become part of the sky itself. This project is a powerful example of how architecture can create meaningful connections between people, space, and the natural world, even in the middle of a dense suburban setting.