At the meeting point between Mashhad’s southern hills and its dense urban fabric, the Bi-Marz Residential Building occupies a threshold — a place that could have easily turned into a rigid border. Yet instead of defining separation, the project reimagines this edge as a continuum: a gentle transition where mountain and city, nature and human life, overlap and breathe within one another.
The site’s terrain, sloping and uneven, resists connection through conventional means. Rather than imposing a fixed geometry, the design accepts this resistance as its starting point — translating the idea of “borderless” into both spatial and material form. The building does not sit on the land; it extends from it, negotiating the topography through a series of linear terraces and cross-cuts that link the north and south edges of the plot.
Conceptually, the project rejects the traditional façade as a dividing membrane between inside and outside. The main façades are rotated 90 degrees relative to the street, carving longitudinal corridors that act as visual and spatial channels through the mass. This gesture transforms the façade from a surface into a framework — an active system of thresholds that connects front and back, light and shadow, openness and containment.
The material palette reinforces this dialogue between raw and refined. Stone, drawn from nearby quarries, is used in its most natural, unpolished form — its rough surface bearing the marks of extraction and time. These inexpensive stones, left untreated, maintain an organic continuity with the hillside, allowing the building to feel of the mountain rather than placed upon it. Brick, by contrast, is arranged in measured, rhythmic patterns, mediating between the roughness of stone and the intimacy of domestic scale. The result is a façade that appears alive — alternately solid and porous, reflective and absorbent.
From the earliest studies, the site’s elevated position and open northern view toward the boulevard were seen as key potentials. This led to the development of linear terraces and deep openings running north–south, ensuring panoramic visibility and the penetration of daylight into every level. On the uppermost floor, the design introduces a deliberate break in the northern roofline, allowing the living area to receive abundant sunlight while creating a private rooftop courtyard — a moment of calm suspended between earth and sky. The roof, typically the fifth façade, becomes here a habitable extension of everyday life.
Inside, spaces unfold between architectural layers rather than within closed rooms. Corridors open to voids; semi-open terraces draw air and light deep into the plan. Life occurs within these interstices — in the quiet rhythm of thresholds, in the alternating expansion and contraction of the interior landscape. The building’s experience is one of continual negotiation: between the desire for retreat and the pull of the surrounding city, between solidity and breath, between human habitation and the larger terrain that holds it.
Bi-Marz becomes not a boundary, but a condition — a living framework that translates the resistance of the landscape into architectural possibility. Through its raw materiality, rotated geometries, and shifting light, the project offers an alternative reading of urban edge: not as the end of the city, but as the beginning of connection.