“24 FRAMES OF LIGHTWELL” is a newborn complex space bringing commerce, fashion, art, and design together in a renovated 50-year-old building in Taipei. The project offers potential solutions to old “walkup apartment” renovation through material selection and subtractive design operation with minimal environmental impacts. The lightweight approach is applied to the entire structure of “24 frames” that extend from the lightwell and influence the interior physical environment, magnifying how visitors sense the surroundings for giving the old building new life and conserving the urban fabric.