Kubera is also known as Vaishravana. His sabha is white in color (like Varuna’s) and is a hundred yojanas long and seventy yojanas wide. He built his sabha himself (like Indra). It is luminous as the moon and is located in the sky at the peak of Mount Kailasa. The sabha is held aloft by the guhyakas.

Kubera’s sabha is filled with tall golden trees and oozes divine fragrance. Extensive coral trees, scented groves, and water lilies are found in abundance. Alaka and Nandana gardens belong to this sabha. Vaishravana sits on the throne wearing colorful robes and glittering ornaments and garlands. He is handsome and surrounded by a thousand women. Many gandharvas, yakshas, and apsaras sing and dance here. The sabha is never empty. Someone will always be dancing or singing in ecstasy.
Apsaras like Mishrakeshi, Rambha, the sweet-smiling Chitrasena, Charunetra, Ghritachi, Menaka, Punjikasthala, Vishvachi, Sahajanya, Pramlocha, Urvashi, Ira, Varga, Sourabheyi, Samichi, Budbuda and Lata are a part of Kubera’s sabha.
Kinnaras, naras (humans), and many others are guests here. Nalakubera (Kubera’s son) is always in the sabha. Others like Narada Muni visit often. Shiva (Pasupati), Parvati (Uma), and their thousands of followers (dwarves, pichasas, etc.) sit with Vaishravana in this sabha.
Also, read about Indra’s Sabha, Yama’s Sabha, Brahma’s Sabha, and Varuna’s Sabha.