Villa Infinity

Experiencing a home of this calibre goes beyond merely exploring its rooms; it involves understanding its layout, appreciating the landscape, and witnessing how life unfolds within the space. At Villa Infinity in Chiba, EY DESIGN successfully integrates these elements by honouring the land’s history. Located about an hour from central Tokyo, the villa is perched on an elevated site that offers breathtaking views of Tokyo Bay and the surrounding mountains. The 3,159-square-meter grounds were once a quarry that supplied stone for the city’s architecture, with visible remnants of this history adding to the property’s unique story. EY DESIGN’s interior concept, “Memory of the Quarry,” draws inspiration from the stone-cutting processes. This theme is reflected in mineral textures, fault-like lines, and sculptural shapes that convey the site’s heritage without literal reconstruction. It influences the entire 1,100-square-meter home, encompassing spatial planning, custom furniture, and lighting, thereby creating a cohesive character while allowing for versatile room functions. The property consists of a Main House and an Annex, connected by corridors and elevated walkways that form a fluid figure-eight path throughout the villa. This design enhances the overall experience, offering views of water, rock, and mountains while leading to areas intended for gathering and relaxation. This thoughtful circulation brings coherence to the villa’s diverse uses, allowing the experiences of weather, light, and elevation to integrate with daily life. Each pathway gradually reveals the home, emphasizing its connection with the landscape. Inside the Main building, expansive views enrich the living spaces. The infinity pool appears to extend towards Tokyo Bay, serving as a backdrop for meals and relaxation that change with the light throughout the day. These views are woven into daily life, rather than confined to specific areas. The quarry narrative connects spaces of varying functions, with mineral tones and geometric designs providing a solid foundation, while timber, textiles, and controlled lighting introduce warmth. This balance between the site’s robust character and livability creates a welcoming atmosphere. EY DESIGN’s involvement began in the planning stages, collaborating on all aspects of interior design, lighting, custom cabinetry, furniture selection, art direction, and final styling. This comprehensive participation ensured that the architectural and domestic components merged into a singular creative vision. Factors such as light, sound, water, fire, and climate contribute to the villa’s sensory experience. Pools and fireplaces offer warmth and movement, while thoughtful acoustic design and adaptable lighting create varied atmospheres throughout the day. Automated controls allow the environments to shift seamlessly in response to seasonal changes and daily activities. These systems enhance comfort without overshadowing the design, enabling the villa to transition effortlessly from a lively gathering space to a peaceful retreat. Technology supports a relaxed lifestyle while maintaining a consistent material and spatial identity. Villa Infinity intricately weaves the legacy of a former quarry into modern living. Elements of stone, water, light, and movement forge a connection to the land, while the continuous flow between the Main House and Annex fosters a harmonious rhythm within the home Through “Memory of the Quarry,” EY DESIGN has crafted a residence that emerges from its site, showcasing a cohesive identity throughout its interior. This home offers a lasting sense shaped by geology, remaining adaptable to the evolving practices, seasons, and personal stories that will enrich it over time.

Villa Infinity redefines the boundary between architecture and landscape. By integrating the structural logic of a quarry into the floorplan, EY DESIGN creates a sensory-rich environment where movement is fluid and purposeful. The figure-eight circulation acts as a carefully calibrated sequence that orchestrates the relationship between the built structure and the Tokyo Bay panorama, ensuring every room functions in direct dialogue with the horizon.

Designing a residence of this ambition requires maintaining a singular, clear vision across architecture, technology, furniture, and daily function. Villa Infinity accomplishes this through the evocative "Memory of the Quarry" narrative. The concepts of cutting, carving, and stacking bridge the gap between the site's industrial past and the villa's contemporary, luxurious present. The figure-eight circulation is fundamental to the project's success. It transforms the extensive programme into a continuous dialogue with the landscape, water, and horizon, binding the Main House and Annex into a fluid whole. EY DESIGN's early, hands-on involvement ensures that comfort systems and specialized engineering support the architectural intent, with every technological layer enhancing the living experience.

I**IMAGE 01 — MAIN HOUSE AND INFINITY POOL** The shared living space opens up to the water and Tokyo Bay beyond. Long horizontal lines align the interior floor, the edge of the pool, and the distant horizon. **IMAGE 02 — QUARRY-DERIVED LIVING ROOM** Mineral surfaces, fault-like joints, and sculptural furniture translate the concepts of cutting and stacking into a refined domestic composition. **IMAGE 03 — FIGURE-EIGHT WALKWAY** An elevated pathway connects the Main House and Annex above the terrain. This route frames the rock, planting, and sky, enhancing the experience as one moves between different areas. **IMAGE 04 — SPA AND SAUNA** Stone, wood, water, and low lighting create an intimate wellness environment. The technical systems are seamlessly integrated into the room’s material character.

**IMAGE 05 — ANNEX INDOOR POOL** The indoor pool expands the active leisure program within a more sheltered setting. Large windows maintain a connection with the surroundings while also controlling the climate. **IMAGE 06 — OUTDOOR KITCHEN AND FIRE** Cooking and gathering occur next to the landscape. Fire, furniture, and the weather contribute to the Annex's direct seasonal use. **IMAGE 07 — BEDROOM MATERIAL DETAIL** Mineral-toned surfaces are balanced by fabrics, wood, and carefully controlled lighting. The reference to quarry materials remains evident without compromising comfort. **IMAGE 08 — NIGHT VIEW AND SCENE LIGHTING** Integrated controls adjust the lighting of the pool, façade, and interior to create a coordinated evening atmosphere, maintaining depth while minimizing unnecessary brightness.

The residence consists of two buildings—the Main House and the Annex—situated on an elevated site that spans 3,159 square meters. A continuous figure-eight pathway connects the buildings through interior corridors and elevated walkways, allowing occupants to enjoy stunning views of the terrain, water, and horizon throughout their journey. The Main House features a living area, dining space, and kitchen adjacent to the infinity pool, while bedrooms, a spa, sauna, and entertainment areas are distributed throughout this spacious dwelling. The Annex includes facilities such as an indoor swimming pool, a gym, an outdoor kitchen, and a barbecue area, fostering a more active connection with the surrounding landscape. The walkways maintain a separation between the two buildings, enhancing the overall residential experience by making the journey between them enjoyable. Integrated controls manage sound, lighting, water, fire, and climate according to the specific room, season, and intended use. The spatial analysis is based on the original project submission, which documents a 1,100-square-meter program.

Applicant: EY DESIGN (Studio del Sol LLC) Project Completion Date: 31 October 2025 Company URL: https://eydesign.jp/ Project Name: Villa Infinity

Located approximately one hour by car from central Tokyo, this luxury villa occupies an elevated site in Chiba, commanding expansive views across Tokyo Bay and the surrounding mountain ridgelines. Powerful architecture and refined interiors come together to form a private retreat where nature is experienced through all five senses. The site was once a quarry that supplied stone for the capital’s architecture, and traces of this industrial heritage remain embedded in the dramatic rock faces and undulating terrain. Drawing on this context, the interior design concept is titled Memory of the Quarry. The acts of cutting, carving, and stacking stone are reinterpreted as a spatial language, expressed through mineral-inspired materials, fault-line motifs, and sculptural geometric forms that reflect the client’s lifestyle and sensibility. Set on a 3,159-square-metre site with a total floor area of 1,100 square metres, the residence comprises two buildings—the Main House and the Annex—connected by corridors and elevated walkways. Circulation is conceived as a continuous, infinity-shaped (∞) loop that responds to the landscape, creating a layered and immersive spatial sequence. The Main House includes a living, dining, and kitchen area overlooking an infinity pool, a spa with sauna, six bedrooms, and dedicated entertainment spaces. The Annex accommodates functions for more active engagement with nature, including an outdoor kitchen and BBQ area, an indoor pool, and a gym. EY DESIGN joined the project from the earliest planning stages at the request of a long-standing client, ensuring that the interior design was fully integrated into the architectural concept. Working closely with the architectural team, lighting designers, and specialist consultants, EY DESIGN contributed to spatial planning, interior design development, lighting design, kitchen design, and bespoke joinery. EY DESIGN also oversaw all FF&E selection, art direction, and final styling, ensuring a cohesive interior concept throughout the project. The project is underpinned by a clear and consistent design narrative that extends seamlessly from the site’s natural form and quarry history into both architecture and interior design. Lines, geometries, and natural colours derived from the land are carried through every scale of the interior—from spatial planning and bespoke furniture to lighting, fabrics, and soft furnishings. As a luxury residence, sound, light, water, fire, and climate control were conceived not as technical systems alone, but as integral components of the spatial experience. From both an energy-efficiency and sustainability perspective, precise control of these elements was essential, requiring close collaboration between the architectural team, lighting designers, home automation specialists, acoustic consultants, and building services engineers to enable seamless scene control. The result is a residence that achieves a strong design identity while offering the comfort and ease essential to long-term living, creating an immersive spatial experience that balances strength with refinement. Architect: Katsuma Tai Architect & Associates Interior Architecture: Tai and Associates Interior Design, FF&E, Art Direction & Styling: EY DESIGN Lighting Design: Light Collab Japan Construction: Sasahara Corporation Interior Photography: Koji Fujii / TOREAL Inc. Exterior Upper View Photography: Seiichi Ohsawa

Prepared for Merci Magazine × Sky Design Awards 2026