Extrude is a minimalist building located in South Korea, designed by studio_GOAN. The site is near Han-river in Changwoo-dong, located at the city boundary of Hanam. It was left unused because many decades ago, the road along the river had been widened, making this land end in a weird shape. The land looked like a last piece of round pizza or a cheese cake piece on a neat dish. Due to the form, the land remained empty until we intervened. When the architects visited the site with the clients, it felt as if the land beckoned them to make use of it. This triangular area was about 123㎡, and after we offset and extruded the shape of the land, it became a triangular prism with 70㎡ of possible building area. Without any barrier or transitional space, this land sits next to busy traffic passing the Paldang bridge and streams of water heading to Seoul. The building entertains the cars entering the Paldang bridge, but not the people walking down the street.