IDIN Architects Folds a Giant Gable Roof Down to the River at Keereetara Restaurant

Most architects asked to design a large banquet restaurant on a riverbank would start with the program: how many seats, how big the kitchen, where the parking goes. IDIN Architects started with a roof. For Keereetara, a replacement for an older branch nearby on the Khwae Yai River in Kanchanaburi, the studio conceived a single dominating gable whose ridge is offset from center and gently tilted, so that one long plane of shingles sweeps almost to the ground while the other lifts to admit light and frame views of the distant mountains. Everything else, the 1,000-square-meter kitchen, the tiered dining terraces, the banquet hall, organizes itself beneath and around that gesture.

What makes the project genuinely interesting is the way it treats Thai architectural precedent. Rather than borrowing pitched rooflines, ornamental bargeboards, or symmetrical temple plans, IDIN absorbed what the studio calls the "feelings and senses" of traditional building: the proportional dominance of the roof, the graduated approach from public threshold to sheltered interior, the way eaves create deep shade. The result is a building that feels unmistakably rooted in its region without quoting a single historical detail.

A Roof That Does All the Talking

The roof is the building's primary architectural statement, and it earns that status. Its ridge is offset from the structural centerline and slightly tilted, which produces two asymmetric slopes: a shorter, steeper pitch on the entry side and a longer, lower slope that reaches down toward the river terraces. The tilt creates a luminous seam along the ridge, admitting daylight that carves an illuminated axis from the entrance straight through to the water.

From a distance the curving eaves read almost organic, like a leaf folding along its midrib. Up close, the timber slat underside reveals a rigorous structural logic of steel beams and layered rafters. It is a roof that rewards both the drone's eye and the seated diner's upward glance.

Threshold and Procession

Arriving at Keereetara is choreographed as a slow reveal. A monumental staircase, framed by black structural portals and a slatted timber ceiling, draws visitors upward through compressed space before releasing them into an open courtyard bathed in light from the offset skylight above. The kitchen and back-of-house services are tucked behind this grand stair, invisible to guests yet occupying over half the building's floor area.

The second-level foyer functions as a hinge: from here you can move into the enclosed banquet hall on the third level or descend through alternating terraces that step gradually toward the riverbank. It is a sequence borrowed, consciously or not, from the layered courts of Thai palace compounds, where each threshold tightens or loosens the spatial pressure.

Terraces Stepping Toward the Water

The dining terraces are the building's social heart. They cascade from the main volume in alternating levels, each shift in elevation bringing diners closer to the Khwae Yai River and further from the bustle of the kitchen. Timber decking, planted beds with young trees, and open pergolas give each level a distinct character while maintaining visual continuity through the repeated rhythm of cylindrical columns and exposed roof beams.

The lowest terrace, essentially a timber dock, places diners at the river's edge beneath the cantilevered roof. At this point the sweeping shingle plane overhead feels protective rather than monumental, its scale domesticated by proximity. The transition from grandeur to intimacy across a few flights of steps is handled with real finesse.

Interior Atmospheres

Inside the enclosed dining hall, the mood shifts from open-air informality to something warmer and more controlled. Vertical wood slat walls and an undulating timber relief surface create acoustic texture while maintaining the material palette established outdoors. Linear ceiling lighting runs parallel to the long tables, reinforcing the processional axis without competing with the wood grain.

Perforated metal screens along interior corridors modulate light and airflow, casting patterned shadows that change through the day. These are not decorative screens in the ornamental sense; they perform real work, filtering western sun and encouraging cross-ventilation in a climate where passive cooling is not a luxury but a necessity.

The Timber Ceiling as Landscape

Look up anywhere in Keereetara and you encounter the underside of the roof as a designed landscape in its own right. Steel beams radiate from the offset ridge, supporting layers of timber slats that vary in spacing and orientation. At the central skylight the slats fan outward, admitting a controlled wash of daylight that shifts as the sun moves. At the edges the layers compress, creating deep shadow.

The effect is closer to a forest canopy than a conventional ceiling. It gives diners a reason to look up, which in a restaurant is no small achievement: most hospitality interiors work hard to keep your attention on the table or the view. Here, the overhead plane is generous enough to reward sustained looking.

After Dark

At dusk the building transforms. Recessed lighting along the limestone entry wall and beneath the roof eaves turns the structure into a lantern against the dark riverbank vegetation. The tiered terraces glow from within, their reflections rippling across the water. The tilted roof, which during the day reads as a bold geometric move, softens at night into a hovering canopy of warm light.

Aerial views at blue hour reveal the full extent of the compound: the angular roof footprint, the surrounding dense tropical vegetation, the river curving alongside. From this altitude it becomes clear how tightly the building is calibrated to its trapezoidal site, filling it almost completely while maintaining porous connections to the landscape on all sides.

Outdoor Living Rooms

Several zones blur the line between dining area and lounge. Wicker seating clusters on the lower timber decks, positioned beneath the sculptural roof overhang, offer guests a place to linger before or after a meal. The covered terrace overlooking the river, with its slatted wood ceiling and unobstructed sightlines, feels less like a restaurant extension and more like a private veranda.

These in-between spaces are critical to the building's success as a venue for weddings, seminars, and large gatherings. They provide decompression zones, places to step away from the crowd while remaining within the envelope of the architecture. Too few hospitality buildings account for this need; Keereetara builds it into the plan.

Plans and Drawings

The floor plans confirm what the photographs suggest: a trapezoidal site almost entirely occupied by building footprint, with a central courtyard acting as a light well and organizational spine. The first floor devotes the majority of its area to the commissary kitchen and service cores, while the upper levels progressively open up to galleries, the banquet hall, and river-facing terraces. The sections are the most revealing drawings, showing how the asymmetric roof profile creates radically different spatial conditions on each side of the ridge: compressed and shaded on the entry elevation, expansive and light-filled on the river side.

The axonometric diagram series is worth studying closely. It illustrates the layered logic of the design: site, program, structure, and roof treated as distinct strata that are shifted and rotated relative to one another before being locked together. The offset ridge is not an arbitrary formal gesture but a direct consequence of this stacking strategy, aligning the luminous axis with the main entrance while allowing the long roof slope to shelter the dining terraces below.

Why This Project Matters

Keereetara matters because it demonstrates that regional identity in architecture does not require historicism. IDIN Architects resisted the easy path of quoting gable forms, gilded finials, or symmetrical temple plans. Instead they internalized the experiential qualities of Thai building, the dominance of the roof, the layered threshold, the deep shade, and expressed them through contemporary means. The result is a building that feels Thai without performing Thainess.

It also matters as a piece of hospitality architecture that takes its landscape seriously. Too many waterfront restaurants treat the view as a backdrop, a flat image to be framed by picture windows. Keereetara treats the river as a destination, pulling diners down through cascading terraces until they are practically sitting on the water. The architecture does not frame the landscape; it walks you into it. For a building of this scale, 2,290 square meters of dining, kitchen, and event space, that kind of spatial generosity is rare and worth paying attention to.

Keereetara Restaurant by IDIN Architects. Kanchanaburi, Thailand. 2,290 m². Completed 2022. Interior design by Promote Kamolpantip. Structural engineering by C-Insight Co., Ltd. Photography by DOF Sky|Ground.

About the Studio

Share Your Own Work on uni.xyz

If projects like this are the kind of work you want to make, uni.xyz is a place to publish your own, find collaborators, and enter design competitions.