Inside Kyoto's curved timber family house, showing open plan living area and central timber curve.

Kyoto’s Sugi House Transforms Space with a Centrally Curved Timber Core by Ujizono Architects

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Written by Seth Sebastian

2026-10-17

The Wooden Heart of Sugi House

A curved timber volume defines the interior of Sugi House, a unique residence designed by Ujizono Architects. Nestled in Kyoto, near Yoshida Shrine, this family home spans a compact 83.91-square-meter site, offering 94.87 square meters of living space. Completed in January 2026, the house presents a modest exterior with profound interior innovations.

A Subtle yet Striking Exterior

The house appears as a suspended wooden box over a recessed entrance and parking area. Vertical board cladding creates a fine texture, interrupted by a singular rectangular window, adding character without overwhelming its neighbors. A strip of glazing above the roofline subtly enhances light entry, while shadows under the upper floor add depth.

View of the curved timber core with seating and ambient lighting in the house.

Contrasting Interior Spaces

Architects Kazuki Ujigawa and Mirai Ozono designed a harmonious contrast between the levels. The ground floor features a hallway connecting bedrooms and a bathroom. Upstairs, a more open plan under a sloping ceiling unites living, cooking, and dining areas, creating a spacious communal setting within the home.

Sunlight streams through large windows onto wooden floors and walls.

Artful Separation and Light in the Timber Design

The curved timber core defines spaces without enclosed walls, differentiating the living and kitchen areas, while a mezzanine stair hides within its contour. The kitchen’s lowered ceiling subtly distinguishes functional spaces. High-level windows flood the interior with light while preserving privacy from adjacent properties.

For more innovative architectural designs that utilize timber, explore the Innovative Timber Pavilion in Italy for its harmony with nature and community.

Wooden staircase contrasts with white walls in the bright interior.

Fostering Family Connection

Visual connections through floor openings and adjustable curtains allow flexible interaction and privacy among residents in this distinctive home. The design promotes awareness and interaction, with privacy adaptable to activities, thanks to the thoughtful layout of the curved core.

Exterior view of the house's wooden structure with a garden.

The Power of the Curved Core

This central feature provides organization and focus, enabling distinct zones without hallways. It offers the right balance of definition and openness for a family’s daily life to seamlessly integrate within the living space.

Kitchen area features sleek counters and integrated wooden features.

A Thoughtful Architectural Gestalt

Sugi House masterfully balances form and function. The curved timber core is the ingenious solution that defines space, fosters connectivity, and offers flexibility, making it ideal for modern family living, inspired by principles of Japanese architecture.

To see how compact living spaces embrace nature, check out the Elevated Timber Retreat in Ecuador for its unique blend with the surrounding environment.

Open space with significant use of wood and natural light flooding through.
Inside Kyoto's curved timber family house, showing open plan living area and central timber curve.

Source: yankodesign.com

Frequently asked questions

What defines the interior of Sugi House?

A curved timber volume defines the interior of Sugi House, providing both organization and focus while enabling distinct zones without hallways.

How does the exterior of Sugi House present itself?

The house appears as a suspended wooden box over a recessed entrance and parking area, with vertical board cladding and a singular rectangular window adding character.

What architectural features promote family interaction in Sugi House?

Visual connections through floor openings and adjustable curtains allow flexible interaction and privacy, enabling awareness and interaction among residents.

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