The building serves as the sale office for a condominium jointly developed by Sansiri and BTS. In line with the large green space provided at the main development as a strong selling point, the sale office sets aside some of its land along the street to become a pocket park in a bustling urban area. To make it stand out, the project features about 20,000 glass blocks with a secret garden hidden inside. The facade changes its look perpetually following the condition of sunlight and the shifting shadow of trees. At night, the glass blocks are illuminated turning them into a giant glass lantern.