House K by Yuji Kimura Design in Tokyo, Japan

With a floor area of 47 square meters (505 square feet) per floor, House K is one of the smallest houses on this busy residential street in Tokyo. Designed by the architecture studio, Yuji Kimura Design, the home has been created to provide the owner with indoor/outdoor spaces while also maintaining their privacy.


House K - Yuji Kimura Design - Tokyo - Japan - Small House - Exterior - Humble Homes

House K was completed in 2014, and like most of Japan’s recent avant-garde housing it features white walls, both inside and out, with a real focus on minimalist aesthetics. The owner of the site asked the architects to incorporate an exterior deck space into the design, to act as a space for relaxation amidst the chaotic background of the city.


House K - Yuji Kimura Design - Tokyo - Japan - Small House - Living Room - Humble Homes

As with any house in a dense urban environment maintaining the privacy of the users was a high priority. Small windows have been installed along the more public, street-facing walls of the building. Whereas the large glazed sections are mostly hidden from public view thanks to the timber slat screen, while also letting light filter through and into the home.


House K - Yuji Kimura Design - Tokyo - Japan - Small House - Kitchen - Humble Homes

The interior of House K features white walls offset by wood furniture and flooring. A lightweight steel staircase is central to the design. Its open risers and side rails allow light to pass through, making a minimal impact on the brightness of the space, particularly towards the rear of the house where there are few windows.

House K - Yuji Kimura Design - Tokyo - Japan - Small House - Staircase - Humble Homes

The ground floor contains an open plan living space divided up by furniture components – the kitchen is defined by an island/storage unit and the study/library nook is closed off by a large desk. The remainder of the ground floor is allocated to the living room and the exterior enclosed deck.

House K - Yuji Kimura Design - Tokyo - Japan - Small House - Floor Plan - Humble Homes

The upper level is dedicated to the more private spaces of the house, namely the bedrooms and bathroom. There are a total of three bedrooms, two of which are separated by a large storage closet. The third bedroom features its own balcony set directly above the decking area below. As is common in Japanese houses, the bathroom has been split up with a separate space for the toilet, shower and sink, and the soaking tub.

For more Japanese houses check out this origami inspired house in Japan’s Mie Prefecture by TSC Architects. Or this much more traditional structure called the Cottage of Tsumari that’s designed to act as a low-cost public building. See all Japanese houses.

Via ArchDaily
Photos: Takumi Ota

Niall Burke

Structural engineer by day, tiny house designer by night. Niall has a keen interest in small spaces, green design, and sustainability. He started developing Humble Homes while studying for his masters degree in engineering. He is the founder and managing editor of Humble Homes.

  1. Hard to believe 3 bedrooms, 2 baths and this open feeling main level, all in 505 sq.ft.

  2. I like this Idea of the split up bathroom with a separate spaces for the utilities.