The Pyramid Apartments, located in Kunshan's Huaqiao District in Jiangsu Province, China, is a striking 328-foot-tall residential and commercial complex. Completed in 2013, the structure features a stepped-back design with protruding 45-degree angled terraces inspired by traditional Chinese rice terraces. Unlike true pyramids, the 18-story complex has two vertical exterior walls, but the other two are slanted, creating an impressive visual effect. The building’s unique design has presented several challenges particularly in terms of ventilation and natural lighting inside the apartments. The deeper structural core required to stabilize a pyramid creates massive, windowless internal hallways. These deep interior common spaces rely 100% on heavy mechanical HVAC systems rather than receiving fresh air currents. Because the units project outwards at a 45-degree angle, lower terraces receive zero overhang protection from above. This leaves the glass facades fully exposed to the sun, creating a intense greenhouse effect and extreme glare during peak daylight hours. Developers installed heavy-duty, zoned mechanical air circulation systems in the central hallways that continuously pump fresh air into the core to prevent the internal corridors from becoming stagnant.
