The Hidden Gable House is conceived around a familiar architectural form that is deliberately concealed from the exterior—a pitched roof embedded within a restrained, contemporary volume. Rather than expressing this form outwardly, the project internalizes it, allowing the essence of traditional domestic space to be experienced from within.
Located on a 400-square-meter plot in Bangkok’s Sai Mai district, the house was designed as a retirement residence adjacent to the family’s existing home. The brief required a careful balance between proximity and independence, supporting multi-generational living while preserving autonomy and privacy for each household.
At the core of the project is the reinterpretation of two vernacular principles. The first is the gable roof, reimagined as an internal spatial condition rather than an external figure. While the exterior remains deliberately minimal, the interior reveals a volume that recalls the spatial qualities of traditional Thai timber houses. The gable is not an object to be seen, but a space to be inhabited.
The second principle draws from the ground condition of the traditional Thai stilt house. Instead of elevating the structure, permeability is achieved through openness and section. Large-format openings dissolve the boundary between interior and exterior, while generous ceiling heights create a shaded, breathable environment. This spatial quality extends into a north-facing courtyard, which acts as a shared threshold between generations.
The house is organized in a U-shaped configuration around this courtyard, forming a protected internal void that filters the surrounding urban context. This inward orientation establishes a microclimate defined by diffused daylight, shaded outdoor space, and effective cross-ventilation.
At ground level, public and semi-private spaces are arranged along a continuous spatial sequence. The entrance leads into a fluid environment where dining, double-height living, and the internal courtyard are visually and physically connected through full-height glazing. A reflecting pond at the northern threshold operates as a passive cooling element, tempering incoming air before it enters the main living spaces. Adjacent to this open plan, the design introduces the Somtam Balcony (Isan Dining Veranda)—a semi-outdoor gathering space centered around Thai-Isan culinary traditions. Rather than isolating food preparation, the veranda reinterprets the communal act of preparing papaya salad as an architectural moment, embedding everyday rituals into the spatial experience of the house.
Accessibility is carefully integrated throughout. The primary bedroom for the elderly resident is located on the ground floor in a quiet wing, maintaining visual connection to the internal courtyard while remaining buffered from service areas. Kitchen, laundry, and storage are consolidated along the southern and western edges. Across the courtyard, a secondary family room acts as a transitional space, linking the new house to the original residence.
On the upper level, the spatial character shifts from openness to enclosure. The plan is divided into two wings: a primary suite organized along a private axis—including a living area, walk-in closet, and prayer room—and a secondary wing containing two en-suite bedrooms for the younger generation.
A bridge spanning the double-height living space becomes the defining moment of the upper level. More than a connector, it frames layered views across the courtyard, the living space below, and the exposed geometry of the concealed gable roof—reinforcing a dialogue between form and space. The roof geometry, in turn, defines the primary living volume, shaping both the section and the quality of daylight.
Material selection reflects a balance between familiarity and reinterpretation. The ground floor is anchored by a base of black slate, evoking the solidity of traditional masonry plinths, while the upper volume is clad in warm teak—referencing the material language of Thai domestic architecture. This contrast establishes a clear tectonic hierarchy while grounding the project within its cultural context.
Within the constraints of Bangkok’s dense residential fabric—limited land, multi-generational living, and the negotiation between contemporary construction and inherited architectural language—the project avoids direct replication. Instead, it internalizes it, allowing the most recognizable form of the house to remain hidden, yet spatially present.
