Clad in black-painted stucco, this 570-square-foot house in Seoul, South Korea, is compact yet flexible. Architect TaeByoung Yim, of Mundoehoje and Studio Bigmimi, designed the four-level residence for JaeHoon Han in the district of Haebangchon, at the foot of Namsan Mountain. “It’s a quiet neighborhood where small houses and commercial buildings are closely gathered,” Yim says.

According to the architect, Han, an adjunct professor and retired CFO, sought to build a second home in Haebangchon as a retreat from his busy life in Gangnam, where he resides full-time with his wife and two daughters. “He needed a place where he could focus on his writing and research, but he also wanted an elegant house, where friends and family would be able to visit.” Yim says. “He was drawn to this location because it provides easy access to anywhere in Seoul.”

The lot previously held a dilapidated single-story house clad with wood. “Originally, the client intended to remodel the wood house and make no major changes to its frame,” Yim says. “However, the old house was empty for a long time, and there were structural issues.” Han and Yim opted to tear down the old home and imagine a new design that would accommodate Han’s desire for a quiet space to study and a sophisticated place to entertain.

The lot is small and narrow, so Yim organized the rooms vertically, creating boundaries between the public and private areas. “It was impossible to arrange the necessary functions horizontally,” Yim says. “I decided to lay out one program or function on each floor.”

Yim arranged the kitchen and the dining room on the first level. The study/office is on the second level, the third level holds the living room, and the bedroom is located in the attic.

“One of the main features of the first floor is that people can enter with their shoes on, because the floor is black granite,” he says. “Generally, in Korean culture, you take your shoes off when you enter the house.”

The second and third levels have oak floors, and the attic is outfitted with tatami, a type of straw mat flooring used in traditional Japanese-style rooms. “The wood is warm and soft, and tatami is [even] softer to the touch,” Yim says. “We valued the floors as the most important interior finishing materials and assigned different textures so that the feeling gradually softens as you move from public to private space.”

Shop The Look

A bright-white cantilevered staircase crafted with finger joint–style ten-millimeter steel plates links the third and fourth levels. “We wanted the material to be as minimal and light as it could be,” says Yim. The first, second, and third levels are joined by an oak staircase.

Yim’s design wastes no space, and focuses on adaptability. “The first floor of this house is designed for the owner to use how he wants,” the architect says. “It can be closed off or left more open, connecting the house to the street, the neighborhood, and the city. There’s lots of potential to change the use, depending on lifestyle. The first floor can be used as a private dining restaurant or a shared kitchen space, while the rest of the house can be rented out. The final design really reflects the taste and the lifestyle of the client, who has a very flexible character.”

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Project Credits:

Architect of Record: Mundoehoje and Studio Bigmimi / @mundoehoje_official

Construction: Yigak Construction Company

Structural Engineer: Kim & Lee Structural Consultant

Landscape Design: Garden & Forest Inc.

Lighting Design: mundoehoje and quoteslab

Interior Design: mundoehoje and quoteslab

Photography: Texture on Texture