Japan-Places.com hat ca. aufgelistet 6 Immobilienagenturen im Onomichi. Einige der am besten Immobilienagenturen im Onomichi sind- Bianca Onomichi Management Association, Hiroshima Prefectural Building Lots and Buildings Trading Association (Kosha) Onomichi Branch, Sazanami Real Estate Co. Ltd., Hotta Gumi Co. Ltd., Harada Immobilien & Liage Onomichi Shinhama Management Association.