In particular, the dwelling facility for the goten jochu (palace maids) was called the Nagatsubone (attendants' quarters), and the one in the inner palace of Edo Castle was a two-story, 80-meter-long building in which a lavatory and kitchen were provided for each of the dwelling units.
とくに御殿女中の居住施設は長局とよばれ、江戸城大奥では、戸別にトイレ・キッチン付二階建てで全長80mもあった。