Timber-framed canopies reconnect Japanese home with outdoors in Miyakonojo

This article examines YNAS’s renovation and extension of a 1978 single-storey timber house in Miyakonojo, southern Japan. The goal was to strengthen its connection to land, privacy, and the surrounding community.

By removing internal walls and rethinking circulation, the project creates a unified living, dining, and kitchen zone. Traditional elements are reintroduced to maintain tactile ties to the ground and landscape.

The design expands outdoor rooms through engawa canopies and extended eaves. Sustainability features, such as solar panels and rainwater harvesting, support a more self-sufficient home while preserving cultural context.

Design approach and spatial strategy

YNAS redesigned the plan to open up the cramped, dark interiors of the original house. Removing partition walls and an L-shaped corridor created a continuous space for living, dining, and kitchen activities.

Preserved timber columns add vertical rhythm to the refreshed space. Varied floor finishes help define different areas without building new walls.

The house’s shallow eaves are extended with timber-framed canopies. These create shaded outdoor rooms that feel like extensions of the interior.

Key spatial moves

• Elimination of interior partitions and a corridor to form a unified living, dining, and kitchen zone.
• Preservation of original timber columns and use of diverse floor finishes to define zones.
• Deepened engawa spaces beneath new canopies topped with corrugated metal to blur indoors and outdoors.
• Continuous mortar “doma” floors across kitchen, dining, and eave areas for seamless transitions.
• Tatami areas retained in the living room and the father’s room, using Kyushu igusa for a tactile, land-connected touch.
• Reintroduction of traditional elements and a new outdoor rhythm that invites neighborly observation of daily life.
• Firewood storage integrated into a low gabion wall, replacing a front hedge and anchoring the landscape strategy.
• A timber-framed storage and workshop zone clad in corrugated polycarbonate sits to the northwest, under a steel-and-timber canopy that also shelters parking.

Reinstating traditional elements and craft

The project brings back authentic Japanese domestic features to reinforce a sense of ritual and place. The engawa, a long veranda connecting indoors with the garden, is reimagined with timber framing and protective canopies to extend outdoor life.

The kitchen and outdoor spaces use the idea of doma—a continuous mortar floor—to soften the boundary between inside and outside. Careful material choices keep the home visually light and tactile.

Engawa, kamado, irori, and wood bath

• Engawa spaces deepened and protected by timber canopies, creating transitional outdoor rooms.
• Outdoor kamado (wood-fired stove) paired with an indoor irori (sunken hearth) for traditional cooking and warmth.
• Steel, wood-fired bath within the wet room arranged for seasonal use and social ritual.
• Firewood stored in a low gabion wall made from local rubble, replacing a hedged margin.

These elements create a tactile, multi-sensory relationship with the land. They reinforce cultural memory while supporting modern living patterns.

Materiality, structure and finishes

The project highlights timber as the main structural and aesthetic material. Durable, low-maintenance finishes complement the timber.

Corrugated polycarbonate cladding on the workshop volume meets practical needs and gives a light, modern look. New canopies and steel-and-timber framing provide weather protection and help distinguish the extension from the original house.

Layering materials—timber columns, concrete-like doma, and metal-topped engawa—creates a clear yet flexible composition. This respects the house’s history and suits the local climate.

Outdoor spaces, privacy and community

Framing the engawa and eaves as social spaces dissolves strict indoor/outdoor boundaries. Privacy is maintained while encouraging daily use and casual observation from the street.

The design strengthens the home’s role within its neighborhood and preserves intimate family zones. This approach shows how architecture can balance private living with public life in rural Japan.

Sustainability and performance

Sustainability is addressed through roof-mounted solar panels. A rainwater-harvesting system also increases self-sufficiency for a small household.

These features work with the project’s low-energy needs. The long-lasting timber structure combines traditional craft with modern performance standards.

Photography of the project was supplied by YNAS.

 
Here is the source article for this story: YNAS uses timber-framed canopies to reconnect Japanese home with the outdoors