Iron Architecture, Building and Structure Design · 2025
Stack Up House
- A' Design Award 2025 Iron Winner in Architecture, Building and Structure Design
- Awarded April 15, 2025
- CLIENT: KENBO Co., Ltd.
- Estimated Number of Design Views: 8,653
- Verification code 9119C34E92 · Verify this award
About Stack Up House
Stack Up is a two-story wooden house built in a dense urban area. The exterior resembles a stack of boxes of different sizes, which gives the building a sense of depth. Windows were positioned to limit views from the street, and large glass panels bring in natural light. A high ceiling adds a feeling of spaciousness. A courtyard allows light and air to enter while keeping the interior private. A large tree in the garden acts as a screen. The garden is also arranged as a run for dogs, with fences and stairs at safe heights.
Stack Up House engages contemporary residential architecture's ongoing investigation into how discrete volumetric elements might coalesce into unified domestic environments while maintaining formal legibility of constituent parts, a compositional strategy with lineage extending through modernist traditions from Gerrit Rietveld's Schröder House spatial decomposition through Richard Meier's white geometric articulations to contemporary practitioners exploring materiality and spatial layering. Kazuma Kobayashi's design demonstrates sophisticated understanding of how contrasting materials and surface treatments can articulate programmatic zoning and spatial hierarchy within residential architecture, the interplay between the charcoal-toned textured cladding suggesting protective enclosure and the warm timber surfaces visible through transparent ground-level openings creates a dialogue between privacy and revelation, shelter and invitation, that addresses fundamental residential architectural questions about how buildings mediate between public and private realms. The compositional achievement here resides substantially in the calibrated asymmetry of interlocking volumes, the larger right-hand mass establishing visual anchor while the cantilevered left volume and recessed central transitional zone generate spatial dynamism and prevent static symmetry, this tripartite organization recalls classical compositional principles while the geometric vocabulary and material palette remain resolutely contemporary. The chromatic restraint throughout the design demonstrates confidence in allowing form, texture, and spatial relationship to carry expressive content rather than relying upon color saturation, the cool charcoal grays in their various textural expressions from smooth render to dimensional scaled cladding create sophisticated tonal variations within a disciplined palette, while strategic deployment of warm timber tones provides thermal and psychological counterpoint, and the upper-level band of cerulean blue glazing introduces the only chromatic note beyond neutral territory, connecting the building visually to the sky canopy. Technical facility evident in the crisp volumetric articulation, the clean resolution of material transitions, and the successful integration of varied surface treatments within coherent architectural expression suggests accomplished design development and construction execution. The building's engagement with its site through the xeriscape landscaping strategy and the relationship between built mass and open sky demonstrates sensitivity to environmental context and climatic conditions. Thematically, Stack Up House appears to explore how contemporary residential architecture might achieve both formal sophistication and domestic warmth, how geometric rigor and material richness need not exist in opposition but can reinforce one another, and how the readable layering of architectural elements can express the stratified nature of domestic life with its multiple functional and experiential zones. The visibility of interior furnishing and inhabitation through transparent zones suggests the design embraces rather than conceals its residential function, proposing transparency and connection over fortress-like enclosure. One might observe how the building's formal language negotiates between modernist architectural traditions emphasizing abstract geometric form and more recent movements toward material authenticity and tactile richness, or how the design positions itself within broader conversations about sustainable residential architecture through its apparent attention to solar orientation, natural ventilation strategies suggested by the fenestration placement, and landscape approaches suited to water-conscious environments, inviting viewers to consider how contemporary residential design continues evolving in response to environmental awareness, technological possibility, and enduring human needs for shelter that provides both protection and beauty.
Press Kit
- Unique Properties
- This building was designed to achieve an open space while protecting privacy in an environment where the surrounding buildings are close together. The placement of the windows was adjusted to take into account the view from the outside. The interior was designed with a high ceiling to create a pleasant sense of spaciousness while reducing the sense of oppression. Furthermore large glass was effectivel placed to bring in plenty of natural light creating a bright and open space.
- Dimensions & Packaging
- Site area 400 square meters
Building area 155 square meters - Tags
- house, box, japan, Architecture, garden, pet
- Production Technology
- wooden Second story building
- Design Challenge
- At the client's request we incorporated a design that would make the miscellaneous goods collected as a hobby stand out in the home. We adjusted the interior materials and colors to create a space that would bring out the appeal of the miscellaneous goods. In addition the garden design is centered around stones and we designed it to harmonize with the interior while making the most of the texture of natural materials.
- Project Duration
- Built in Kurashiki City Okayama Prefecture in 2023
- Operation Flow
- The garden is designed to be used as a dog run and a spacious area has been secured where pets can run around freely. Safety has also been taken into consideration and by carefully selecting the height of the fences and stairs an environment has been created where dogs can live comfortably.
- Research
- We carefully considered the optimal window layout taking into account the surrounding environment. We made sure to incorporate the client's request for large windows while also making sure to create a space where they could live comfortably. In particular we planted a large tree in the garden and used it as a screen. This allowed us to block out the view from outside while also letting in a pleasant amount of light creating a living room with a sense of openness.
- Inspiration
- This house is located in the city center but we aimed to create a space that would provide a high level of privacy and a sense of comfort similar to that of a resort hotel. The building has a design that resembles overlapping boxes giving it a sense of depth. In addition by incorporating a design with a courtyard we have created an open space. While allowing in natural light and wind, we have created a private space where you can spend time without worrying about the eyes of those around you.
- Image Credits
- Photographer Senichiro Nogami
Colors of Stack Up House
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