'Lumi-el' is a very small neighborhood facility located at 1919 Ido-idong, Jeju-si, designed to bring light and convenience to the vibrant urban everyday. This building serves various purposes including retail, workshops, and offices. Its modern design, featuring extensive curtain walls, captures both the dynamic urban landscape and the tranquil natural views. Notably, the walled outdoor triangular courtyard on the 1st floor is designed to function as a flea market space, offering a unique venue for urban interaction. True to its name, meaning 'light,' Lumi-el provides essential urban amenities and gathering places, illuminating the daily lives of those who visit with bright vitality. Its simple yet practical spatial configuration accommodates diverse activities, serving as an urban sanctuary where one can pause and enjoy moments of respite amidst a busy routine.