- 1949
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Izumi Real Estate Co., Ltd. established to succeed real estate business of the Sumitomo Honsha Ltd. following the breakup of the conglomerate.
- 1957
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Izumi Real Estate Co., Ltd. changed its name to Sumitomo Realty & Development Co., Ltd.
- 1962
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Entered the luxury rental apartment business with Mejirodai Apartment (Bunkyo Ward, Tokyo).
- 1963
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Merged with the holding company of the former Sumitomo zaibatsu during its liquidation.
- 1964
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Entered condominium sales business with Hama-Ashiya Mansion in Kobe, Hyogo Prefecture.
- 1970
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Listed on the Tokyo Stock Exchange and Osaka Securities Exchange.
- 1972
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Established Sumitomo Realty & Development CA., Inc., a consolidated subsidiary.
- 1973
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Established Sumitomo Fudosan Tatemono Service Co., Ltd., a consolidated subsidiary.
- 1974
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Completed construction of 52-story Shinjuku Sumitomo Building in Shinjuku, Tokyo; moved Company headquarters there from Tokyo Sumitomo Building in Marunouchi, Tokyo.
Shinjuku Sumitomo Building
- 1975
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Established Sumitomo Real Estate Sales Co., Ltd., a consolidated subsidiary.
- 1980
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Established Sumitomo Fudosan Syscon Co., Ltd., a consolidated subsidiary.
- 1982
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Completed construction of 30-story Shinjuku NS Building in Shinjuku, Tokyo; moved Company headquarters there from Shinjuku Sumitomo Building.
Shinjuku NS Building
- 1984
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Established Sumitomo Fudosan Finance Co., Ltd., a consolidated subsidiary.
- 1986
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Established Sumitomo Fudosan Fitness Co., Ltd. (currently Sumitomo Fudosan Esforta Co., Ltd.), a consolidated subsidiar, entering fitness business.