The stadium is designed to be a multi-purpose stadium and features the world’s first dividing, retractable football pitch, which reveals a synthetic turf field underneath for NFL London Games, concerts, and other events.
The stadium is an asymmetric bowl, with a capacity of 62,850. The bowl shape of the stadium comes from the need to maximize hospitality facilities while the asymmetry is the result of the creation of a single-tier stand in the south. The stadium is around 48 m high, 250 m long on its north–south axis, and about 200 meters wide from east to west. The stadium covers an area of 43,000 m2, nearly twice the area of White Hart Lane (24,000 m2). There are 9 floors in the horseshoe-shaped northern section above the basement, and 5 floors in the south, with a gross internal area of 119,945 m2, which is around four times that of White Hart Lane.
Tottenham Hotspur Stadium is also the first and only stadium to be designed especially for NFL games outside of North America. The first game at the stadium took place on 6 October 2019 when the Chicago Bears played against the Oakland Raiders.
In order to keep the football pitch in optimum condition, there are two different surfaces – a Desso GrassMaster hybrid grass pitch for football, and a synthetic turf surface underneath to be used for NFL games, as well as concerts and other events. The football pitch can be retracted in a way similar to that of the Arizona Cardinals home stadium, but it is the first in the world to split into three sections before retracting. The pitch needed to split so as to accommodate the two columns supporting the South Stand when retracting. Each of the three sections weighs more than 3,000 tons and is made up of 33 smaller trays, making a total of 99 trays, with a combined weight of 10,000 tons. The retracting pitch slides into the car park under the South Stand and the south podium, and the surface can be switched in 25 minutes to an hour. The NFL field is placed 1.6 meters beneath the natural turf surface, and the change in height when the surface is switched also produces ideal sightlines for the front row for both codes (NFL team personnel tend to stand along sidelines in allocated areas which would block the view of the front row if the field level is not lower in NFL games).
According to the Wikipedia