The gallery is located in the courtyard of No.1 Privet House in Beijing, and the demand is to transform a semi-open underground exhibition hall near the entrance of the courtyard into a private meeting room for private exhibitions and socializing. We try to create the whole space with garden thinking, mirror water feature with black and white plain stone material presents rich landscape layers, which is skillfully interpreted in a square inch area, and the interest of the space is felt in the change of scenery.