ULTRA Studio Makes the Invisible Visible in Two Tokyo Homes

Two Tokyo homes designed by ULTRA Studio operate on opposite principles, yet both pursue the same goal: making the invisible visible. One introduces something entirely new and watches it fade into the background. The other takes what residents have learned to ignore and forces it back into view.

After Image, completed in 2023, sits on an 81.98-square-meter lot in a typical Tokyo residential neighborhood, wedged between a busy street and a narrow alley where neighbors tend small gardens. The architects reversed the expected logic of the site. Instead of opening the house toward the quieter street, they turned the building inward, giving the alley—the more intimate edge—a garden and window that functions as the home's primary face. Inside, a monolithic black cylinder rises through the center of the first floor, which stretches to nearly four meters in height. The rooms above compress beneath a lower ceiling, and the cylinder divides the plan in ways that go far beyond simple spatial partitioning.

The cylinder's real work happens over time. When residents first move in, it commands attention—a stark, opaque form impossible to miss. But ULTRA Studio anticipates what comes next. As daily life unfolds, as the couple and their child develop routines and move through familiar paths, the cylinder gradually recedes from conscious awareness. The architects compare this to the nose: always within the field of vision, yet the brain learns to look past it. Views catch its edge or disappear behind it. Upstairs, fragments of the same cylinder appear in separate rooms, allowing residents to understand their positions relative to one another. Open the sliding doors and those fragments align, creating a subtle sense of rotation around the form.

Other elements complicate perception further. A silver cylinder above the alley window reflects daylight and the garden while hiding pipework. A mirror attached to a blue column lets someone in the kitchen glimpse the living room. Architectural components reappear as painted shapes on opposite walls, turning structural elements into images of themselves. ULTRA Studio describes this layering as essential to its philosophy. "We consider 'mysteriousness' to be a crucial element in spatial thinking," the team explains. "Rather than providing immediate answers, we aim to create spaces that evoke questions." In After Image, that mysteriousness operates on a domestic timescale. The black cylinder begins almost symbolically, a strong organizing figure. Daily life slowly crowds that symbolism with other associations: the route to a bedroom, a glimpse through a doorway, the position of someone sitting across the room. The residents build understanding from fragments, while the architecture that first demanded attention becomes increasingly ordinary.

Across the city, Apartment in Uehara begins with the opposite problem. Tokyo's residential neighborhoods are shaped by steep elevation changes, where retaining walls and raised concrete plinths create level building sites above sloping ground. Plants spill over the edges of these walls toward the street. Beige tile covers countless apartment buildings. These materials and construction methods have become so familiar that they feel natural, almost invisible—a strangely generic landscape emerging through sheer repetition. ULTRA Studio saw an opportunity to make that familiarity strange again.

The architects worked directly with the site's existing conditions. Portions of the plinth are carved away so the building can follow the natural contours. Concrete floor slabs step upward and downward through the apartments, and planting follows the terraces. Inside, those changes in height become part of daily occupation: a raised slab becomes somewhere to sit, a change of level loosely divides one area from another without requiring a wall. Cylinders and square columns puncture the exterior and enter the apartments as conspicuous objects, some containing circulation between the stepped floors. The architects describe these geometric figures as recurring throughout their work, though their meaning remains deliberately loose. "While they do not directly 'symbolize' any specific concept, they project a suggestive presence within the space," they explain. Their functions shift from project to project, allowing the forms to gather associations beyond their original purpose.

The building's surfaces follow a similar process of recognition and distortion. Standard rectangular tiles—the beige ones that cover so much of Tokyo—reappear here with a highly reflective silver glaze. They catch light and carry it deeper into the apartments. The finish continues indoors, loosening the visual distinction between facade and room. The terraced planting draws another piece of the neighborhood directly into domestic space. Apartment in Uehara therefore begins with architecture that has become almost invisible through familiarity and ends by amplifying it until its peculiarities return. The retaining wall becomes inhabitable terrain. Generic tile catches the sky. A familiar Tokyo streetscape becomes strange enough to notice again.

Both projects treat habitation as something that changes how architecture is perceived long after construction ends. After Image introduces the unfamiliar and waits for everyday life to absorb it. Apartment in Uehara pulls the familiar back into view by shifting its scale and relationships. Together, they suggest that a house is never finished—that the work of architecture continues, quietly, through the years of living within it.