BAAN O+O House by Junsekino Architect and Design – A Floating Vacation Retreat in Khao Yai’s Natural Landscape

BAAN O+O House is a serene family vacation retreat designed by Junsekino Architect and Design, located in Pak Chong, Nakhon Ratchasima, Thailand. Set within the lush greenery of Khao Yai National Park, Thailand’s third-largest protected natural reserve, the 540 m² residence embraces a design philosophy that respects the existing terrain while maximizing views, light, and natural ventilation. Completed in 2025, the project blends architectural elegance with environmental sensitivity, creating a home that visually “floats” above the landscape.

Design Approach: A House That Respects the Land

The site’s sloping topography became a defining element for the design. Instead of leveling the ground or introducing heavy foundation work, the architects elevated the building above the natural grade. This approach minimizes impact on the site while giving the residence its signature floating appearance.

Inspired by cliff-side architecture, the house uses a cantilevered structural system that projects the main living spaces outward from a minimal footprint. From every angle, the design opens to expansive views of the surrounding forest and mountains, reinforcing the home’s connection to nature.

Modern Interpretation of the Thai “Tai Thun”

The open space beneath the elevated structure reimagines the traditional Thai “tai thun”, an underfloor area used for shade, storage, or social gatherings. In BAAN O+O, this space becomes a contemporary outdoor living environment—perfect for relaxation, yoga, or open-air activities. It also acts as a passive cooling system, enhancing cross-ventilation and reducing the home’s reliance on mechanical cooling.

Lightweight Steel Structure and Transparent Materials

A lightweight yet robust steel frame enables the home’s cantilevered wings while maintaining a clean, modern aesthetic. The structure appears slim and visually delicate, reinforcing the sense that the building hovers above the ground.

Large glass walls, sliding openings, and transparent facades dissolve boundaries between indoors and outdoors. Every major room captures panoramic views and invites natural light, creating a seamless dialogue with the surrounding forest.

Courtyard-Centered Layout With Passive Design Strategies

The home’s rectangular form houses a central open-air courtyard, which functions as the heart of the design. This void pulls daylight deep into the interiors and enhances natural ventilation throughout the building.

Rooms are strategically arranged around this courtyard, with each featuring double-aspect glazing—one side facing the courtyard and the other overlooking the forested landscape. This promotes excellent airflow, reduces heat gain, and minimizes energy consumption.

The simple, efficient floor plan creates fluid circulation, allowing residents to move around the home while always staying visually connected to nature.

A Harmonious Blend of Architecture and Environment

BAAN O+O House demonstrates how thoughtful architectural choices can preserve natural terrain while delivering a memorable living experience. Through lightweight construction, elevated foundations, and passive design, the project embodies a sustainable, environmentally responsive approach to contemporary tropical living.

All photographs are works of  DOF Sky|Ground