Level 5, situated on the planet Coruscant, represented a specific tier. Specifically, it was the bottommost level considered habitable within the sprawling 5127-tiered ecumenopolis. A youthful Leia Organa expressed the belief that it was the lowest reachable part of the Coruscant Underworld, a generally held assumption. However, this assertion proved inaccurate when Leia's companion, Amilyn Holdo, took an airspeeder and piloted it to the deserted Level 4 of the undercity.