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Hwangto Housing with Ctesiphon Structure for Self-Sufficient Living

Authors:
Byoung Hoon Jeong, Gi Jin Han, Haein Kim, Yebin Kim
Hwangto Housing with Ctesiphon Structure for Self-Sufficient Living
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Constructed with Hwangto and utilizing a Ctesiphon structure, this housing solution integrates self-sufficiency and traditional elements to support the needs of self-employed individuals in Jeju Island.
5 key facts about this project
01
Hwangto is used for insulation and humidity control.
02
A double outer skin enhances energy efficiency and wind resistance.
03
Daecheong provides natural cooling and heating functions.
04
Ondol panels offer traditional underfloor heating throughout.
05
Modular design promotes flexibility for self-employed occupants.

NEW. C.T. addresses the need for adaptable living and working spaces for self-employed individuals on Jeju Island. Emerging from the socio-economic pressures brought on by the COVID-19 pandemic, this initiative merges traditional housing concepts with modern needs. The design offers low-cost modular units that support both residential and commercial functions. These spaces encourage a sustainable lifestyle and foster community engagement while allowing safe interactions in market settings.

Material Selection

Hwang To, a traditional Korean soil, serves as a key material in this design. Known for its insulation and humidity control, it aims to maintain a comfortable living environment while reducing energy use. The project also incorporates recycled concrete, which contributes to sustainability by minimizing construction waste and promoting economic efficiency. Additionally, wood is used in various elements, adding warmth and visual appeal that connects the homes with the local natural environment.

Architectural Features

The design features an arch-shaped roof, which effectively reduces wind resistance. This thoughtful form aligns with the climate conditions on Jeju Island, addressing both aesthetic concerns and energy efficiency. A double outer skin in the Ctesiphon structure provides insulation while lessening the impact of wind forces, proving useful for the micro housing concept.

Traditional Elements

Key traditional elements are integrated into the design, such as Daecheong. This feature enhances cooling in summer by utilizing wind convection and ensures warmth during winter months. The C-shaped building layout protects the courtyard from intense winds, contributing to a stable internal climate. Such traditional components meet the cultural and functional needs of the residents.

Thermal Strategy

An important aspect of the thermal design is the use of Ondol panels, a traditional Korean underfloor heating system. It operates by warming the air below the floors, creating even heat distribution throughout the living spaces. The synergy of Hwang To as a finishing material supports heat retention while improving insulation.

The design illustrates a blend of traditional practices with modern living requirements. It prioritizes comfort and functionality while maintaining a strong connection to cultural heritage.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

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100,000€ Prize / 2025 ideas COMPETITION
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