From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
The Check-In Station was run by a staff of Ogres. Under certain circumstances, Yama allowed deceased individuals to retain their bodies, usually those who had done heroic deeds, e.g. Olibu, Son Goku, Pikkon, or other high battle power characters. In the anime, Cell was shown being sent down to Hell via a trapdoor in front of Yama’s desk.
It is named Yemma's Office in Dragon Ball Z: Buu's Fury.