FORM/Kouichi Kimura Architects Puts the Shower in Its Own Building

At Minimalist House in Japan, you cross a glass corridor between two buildings just to take a shower. FORM/Kouichi Kimura Architects completed the residence in 2026 on a hillside in Shiga Prefecture, and that separated washroom annex is the whole argument of the building in miniature: everyday routines deserve a relationship with the landscape, and the most interesting space is the space left between rooms.

The house serves one occupant. That fact drives everything else. Rather than shrink a conventional family home, the studio designed around an individual's way of living — its stated starting point — and the plan follows logically from there.

What does the split layout actually do?

The building consists of a two-story main volume and a single-story annex holding the washroom and shower room. A glazed passage connects the two. The gap between them preserves a sightline from the road through the property toward the lake, so the circulation route doubles as a framed view. Separating the washing facilities makes a routine journey a distinct architectural experience within an otherwise compact arrangement. A wall would have been simpler. It would also have blocked the lake.

Inside the main volume, the ground floor holds the kitchen and dining areas; living and sleeping spaces sit upstairs. Both levels have open layouts, connected by a double-height space. Changes in floor and ceiling height distinguish activities without enclosing each one behind a partition. The result is several spatial conditions with visual connections kept between upper and lower levels.

How do the windows treat the landscape?

Deliberately, and selectively. Rather than exposing everything through one sweeping opening, the architects frame selected views from different positions. Their stated intention is to sharpen awareness of what lies outside by limiting what each opening reveals. The lake becomes a series of outlooks tied to individual places in the house, not a single backdrop.

Upstairs, the living area also accommodates listening to music. The project description presents the tall interior as a volume through which sound can spread, reflecting from walls and ceilings — a description of intent, not independently tested acoustic performance. A high vertical window adds a slower effect: daylight casts shifting shadows across walls and floor, making time visible in the pared-back interior throughout the day.

Where does the minimalism come from?

From decisions, not emptiness. The design uses partitions selectively, reserving a separate building for washing while daily living stays connected. Open living and sleeping areas make sense when separating simultaneous household activities is less pressing. Compactness leaves room for variation in height, direction and distance, which makes the route between rooms part of the plan rather than a connection between destinations.

That's the useful specificity here. The house's minimalism comes from deciding where separation matters — and where a wall would offer little value.