HYA-LINE: Dissolving the Boundary Between School and City in Toronto

What if a school had no front door? HYA-LINE takes that question seriously. Rather than placing education behind walls and security turnstiles, the project treats learning as a public act, one that deserves the same spatial generosity cities grant to parks, plazas, and transit corridors. The result is a building that functions less like an institution and more like a piece of urban infrastructure: walkable on top, visually open through its glazed facades, and threaded with bold red circulation paths that pull pedestrians directly through its core.

Designed by Talha Koyun and Berna Koker, HYA-LINE is sited near Danforth Avenue and a railway corridor in Toronto, an area their research identifies as lacking access to high school-level educational infrastructure. The project responds to that gap not by building a conventional school but by proposing a hybrid public learning hub: part co-working space, part amphitheater, part library, and part city street. Over 30 design iterations refined the scheme into a building that addresses both the demographic reality of educational disparity and the spatial potential of its urban context.

A Red Spine That Replaces the Hallway

The interior atrium is the project's most legible space. A cantilevered red staircase rises through a multi-story void, carving a dramatic vertical path above timber seating steps that double as an informal amphitheater. Behind it, a glazed curtain wall floods the space with natural light and keeps the boundary between inside and outside visually thin. The staircase is not merely connective; it is the building's main circulation axis, a spine that links open plazas, classrooms, libraries, and studios across all floors. Movement here is not a transitional activity between rooms. It is a social event, visible from every level, designed to encourage the kind of chance encounters that rigid school typologies actively suppress.

The material palette reinforces this legibility. Concrete provides the structural frame, glass ensures visual permeability, and the red-painted circulation elements act as a continuous wayfinding device. Rather than relying on signage, the architecture itself tells you where to go. If a surface is red, you walk on it. The color-coded logic holds across scales, from stair treads to exterior canopies, giving the project a cohesive visual identity that is immediately understandable to first-time visitors.

Interconnected Volumes Over a Shared Ground

The axonometric rendering reveals the project's organizational strategy at a glance. White box volumes, each housing a distinct programmatic element like co-working zones, flexible workshops, or quiet study rooms, are linked by an arterial network of red circulation paths. Figures are scattered throughout the composition at different elevations, occupying bridges, ramps, and rooftop terraces. The drawing makes the argument that public learning does not require a single monolithic structure. Instead, it can be distributed across a constellation of connected spaces, each calibrated for a different level of engagement: communal discussion in the amphitheater, focused work in the private studios, collaborative sessions in the open workshops.

The walkable roof is particularly significant. By allowing users to traverse the top of the building, the design converts what would otherwise be dead square footage into an extension of the city's pedestrian network. It is a literal statement: the school is not a destination you enter and leave but a surface you move across as part of your daily routine. Pavement manipulation at the ground level further dissolves the threshold between site and street, pulling the surrounding urban grid into the project without the abrupt transition that fences, lobbies, or forecourts typically create.

The Canopy as Urban Room

At ground level, the project reads as a covered outdoor room. Grey columns support a red canopy that extends over a paver surface, creating a sheltered public walkway that belongs as much to the city as it does to the building's programme. People move through the space freely, without turnstiles or controlled entry points. The canopy's generosity is deliberate: it acknowledges that in a city like Toronto, where weather swings between extremes, covered outdoor space is not a luxury but a functional necessity for any genuinely public building.

The site analysis behind this move is thorough. Koyun and Koker studied sun paths, coastal proximity, and the socio-educational demographics of the surrounding neighborhoods before arriving at the building's orientation and massing. The railway corridor to the south and the established commercial strip along Danforth Avenue to the north define two very different edges, and the project mediates between them by offering open, accessible ground-plane conditions on all sides. The architecture does not turn its back on any part of the city it serves.

Why This Project Matters

HYA-LINE challenges a persistent default in educational architecture: the assumption that learning requires enclosure. By treating circulation as the primary architectural event and making nearly every surface of the building publicly accessible, Koyun and Koker propose a model where education is woven into the texture of daily urban life. The scheme's strength lies in its refusal to separate the institution from the city. There is no campus boundary, no formal entrance sequence, no hierarchy that privileges enrolled students over curious passersby.

The design is also notable for its rigor. Thirty-plus iterations, grounded in user behavior studies and demographic analysis, produced a scheme that is spatially generous without being programmatically vague. Co-working zones, amphitheaters, quiet study rooms, and flexible workshops each have defined spatial identities while sharing visual and circulatory continuity through voids and transparent volumes. For a neighborhood in Toronto that lacks educational infrastructure, HYA-LINE offers something more ambitious than a new school. It offers a new relationship between learning and public space.

View the Full Project

About the Designers

Designers: Talha Koyun, Berna Koker

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Project credits: HYA-LINE by Talha Koyun, Berna Koker.