Seireitei

is in the center of Soul Society. It is a circular shiro with four main entrances, ten days walk apart,, each guarded by a Gate Guardian. These gates are called the Black Ridge Gate (in the North), the Blue Stream Gate (in the East), the Red Hollow Gate (in the South) and the White Way Gate (in the West). The gates are so heavy that it takes the full might of Jidanbō Ikkanzaka to lift one, while during the Bount-led attack on Seireitei, siege machines where needed to open the gates. There are, however, doors within the gates, as seen when Momo Hinamori first entered the Shinigami Academy.

The walls of Seireitei are made of, a rare type of stone known to negate all Reiryoku, similar to magnetic lodestones, which prevents the ability to gather Reishi underneath your feet to walk in the air whist within Seireitei. The stone also forms a spherical barrier around the city, extending above and below, stopping anything spiritual from breaching it from ground level, from the sky or from underground.

The majority of the residents of Seireitei, nobility and Shinigami alike, do not interact with the citizens of Rukongai. However, residents of Rukongai, like Renji and Rukia, are allowed to apply for the Shinigami Academy, which is often the only escape from the poorest conditions of Rukongai. Some Seireitei residents, such as ex-commander of the Onmitsukidō, Yoruichi Shihōin, and the Shiba clan, do maintain residences outside the court.

At the center of Seireitei are the, a white tower, and the Sōkyoku Hill, with the , where executions take place, on its flat summit. Other notable locations within Seireitei are the Central 46 Chambers Compound, the Nest of Maggots and the Shinou Academy. The barracks and grounds of each of the thirteen divisions of the Gotei 13 are also located within Seireitei's walls.