Tomorrow Square is the eighth-tallest building in Shanghai, China. It is located in Huangpu District, Puxi, close to People's Square. It is about 285 m (934 ft) tall and has 63 floors.
This multi-purpose building contains a 342-room JW Marriott hotel, and 255 executive apartment units. It was completed on 1 October 2003. Starting from a square base, the all-concrete Tomorrow Square tower transforms itself into a diagonal square as it rises to a peak. Engineers of the exterior vertical support system were faced with a unique challenge as a result of this unusual shape. They chose flat slabs for the hotel floors and beam and slab construction for the office floors. A combination of shear walls and frame action stabilizes the slender tower laterally against wind and earthquake forces. The foundations are 80 m-long bored piles supporting a column mat.
The Tomorrow square is located at the Center of Shanghai's shopping district and interconnects with the people's square and the shopping Center at its base. The building houses office levels at the first section and the Marriott hotel and apartments at the second section of skyscraper.The building holds the record for the highest library in the world located at one of its highest floors.
The building is currently the 8th tallest in Shanghai and the 137th tallest in China and was one of the tallest buildings built in the early 2000s built in the country.