Ryuichi Sasaki Architecture Incorporates Trapezoid Motifs in Tokyo Housing Design
A concrete condominium block inspired by the Musashino Plateau landscape.
1Introduction to Shin Nakano Trapezoidal
Ryuichi Sasaki Architecture has designed a five-storey concrete condominium block in Tokyo, named Shin Nakano Trapezoidal. The project, consisting of 11 residential units, was developed for Real Partners. The design is characterized by trapezoidal motifs inspired by the Musashino Plateau, a prominent tableland in western Tokyo. The architects aimed to translate the abstract concept of the plateau into tangible architectural elements.
2Architectural Inspiration
The trapezoidal motifs in the design were informed by the project's location on the Musashino Plateau. Principal architect Ryuichi Sasaki explained that the challenge was to incorporate the plateau's essence into everyday experiences for residents. This is achieved through the facade, stair shadows, and natural light in the rooms. The motifs create a connection between the building and its geographical context.
3Design Features
The building's eastern edge features a sheltered entrance framed by tall trapezoidal concrete columns and trapezoidal floor tiles. A large sliding metal door leads to a lobby and stairwell, where an industrial-style steel staircase allows daylight to filter through. The lobby divides the block into three wings, housing single-storey and duplex units extending into a basement and rooftop terrace.
4Apartment Layouts
Each apartment in the Shin Nakano Trapezoidal block offers views of the street to the south and a park to the north. Large metal-framed windows facilitate cross-ventilation. The interiors are minimalistic, featuring timber floors, exposed concrete ceilings, white-painted walls, and built-in storage. The trapezoidal motif is carried through into interior walls, floors, and staircase balustrades.
5Exterior Design
The exterior of the building is finished in exposed concrete, with textured trapezoidal and triangular panels created by embossing the concrete surface after pouring. This technique adds depth and visual interest to the facade. The design ensures that the trapezoidal motif is consistently present throughout the building's exterior and interior.
6Architectural Philosophy
Ryuichi Sasaki emphasized that a residential building of this scale is experienced in fragments—such as the entrance, stairs, and windows. The trapezoidal motif was designed to work seamlessly in each of these moments. The architects aimed to create a building that connects residents to the ground it stands on, offering a quiet yet daily reminder of its geographical inspiration.
7Previous Projects
Ryuichi Sasaki Architecture has previously worked on projects in Tokyo, including a mixed-use development combining homes and a community performance space. These projects also featured angular concrete volumes, showcasing the studio's consistent design language. Other notable Tokyo projects include Kenta Hirayama's steel-clad House in Kinuta and Kenta Sano Associates' glass-fronted dance studio.
8Significance of the Design
The Shin Nakano Trapezoidal project exemplifies how architecture can reflect and enhance its geographical context. By incorporating trapezoidal motifs inspired by the Musashino Plateau, Ryuichi Sasaki Architecture has created a building that not only serves its functional purpose but also fosters a deeper connection between residents and their environment. This approach highlights the importance of thoughtful design in urban living.