Note 41 — LECTURE IV. The Saṅgha or Buddhist Order of Monks.
Reading edition
In Mahā-vagga I. 30. 4, five kinds of dwellings are named besides trees, viz. Vihāras, Aḍḍhayogas (a kind of house shaped like Garuḍa), storied dwellings (prāsāda), mansions (harmya), and caves (guhā).