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Expanding Boundaries and Creating Flow: HOMI | Hyunjoon Yoo

Hyunjoon Yoo Architects

written by
Hyunjoon Yoo
photographed by
Roh Kyung
materials provided by
Hyunjoon Yoo Architects
edited by
Bang Yukyung

SPACE Jun 2024 (No. 679) 


©Roh Kyung 


©Roh Kyung 


What Would a House Made of Stone Walls and the Horizon Look Like on Jeju Island? 

This project is to design a small house on a site of about 660m2 on Jeju Island. Jeju Island brings the images of basalt stone walls and the endless horizon to mind. Both are elements of an exotic landscape that is a rare sight for me in Seoul, surrounded by concrete buildings and mountains. I started to imagine ‘a house made of stone walls only and with a roof like the horizon’, incorporating the characteristics of the island. First of all, I wanted to maximise one’s sense of the natural realm in this house, so I decided to design a single-storey house. The site can accommodate a three-storey house within the allowed total floor area, but who would want to build and live in a three-storey house in Jeju Island? City people seek the serenity of a single-storey house. And single-storey houses catch the sun better in the yard. 


©Roh Kyung 


©Roh Kyung 


©Roh Kyung 


©Roh Kyung 


Next, I tried to maximise the length of the building elevation to make the house face nature more and to create an irregularly shaped yard. Of course, I finished all the walls with Jeju basalt to give the impression of a stone wall common on the island. Thanks to the irregular plan, windows are placed in many different angles, which gives different characteristics to the light through the windows even at the same time of day. Just as a diamond cut with different angles reflects light differently, the windows in this house make the space diverse. The floor of the living room is specially painted in the colour of concrete. The shadow of trees in the yard is cast on the living room. Shadow draws an ink-and-wash painting of nature using the living room floor as a canvas. The ink-like shadow varies depending on the ever-changing light over time. 


©Roh Kyung 


©Roh Kyung

You can see more information on the SPACE No. June (2024).


Hyunjoon Yoo (Hongik University) + Hyunjoon Yoo A

Design team

Park Suwon, Kim Jin, Moon Jayoung, Jang Seoyoon


Haye-dong, Seogwipo-si, Jeju-do, Korea


single house

Site area


Building area


Gross floor area


Building scope






Building to land ratio


Floor area ratio




Exterior finishing


Interior finishing

basalt, special paint

Structural engineer


Mechanical and electrical engineer



G.A.U Archi_Factory

Design period

Aug. 2021 – May 2022

Construction period

Aug. 2022 – Oct. 2023


Hyunjoon Yoo

Landscape architect

KnL Landscape Design Studio (Kim Yongteak)

Hyunjoon Yoo
Hyunjoon Yoo is a professor at Hongik University and he leads Hyunjoon Yoo Architects. He studied architecture at Harvard Graduate School of Design, Massachusetts Institute of Technology, and Yonsei University, and worked at Richard Meier & Partners Architects. He has won numerous awards both domestically and internationally, including the Chicago Athenaeum Architecture Awards, German Design Award, Young Architect Award, Kim Swoo Geun Architectural Prize Preview Award, and the President’s Prize for Korean Space Culture Awards. He is known as a ‘humanistic architect’ for his diverse books and broadcasts that provide insight into the world through architecture. His YouTube channel, ‘Sherlock Hyunjoon’, currently has 1.23 million subscribers.