- 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 in Bunkyo Ward, Tokyo.
Started sales of Chofu Residential lots in Chofu, Tokyo.
- 1963
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Merged with the holding company of the former Sumitomo zaibatsu during its liquidation.
Established Sumitomo Investment (H.K.) Ltd. in Hong Kong.
- 1964
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Completed construction of Kazan Building in Chiyoda Ward, Tokyo.
Opened Osaka Branch.Entered condominium sales business with Hama-Ashiya Mansion in Kobe, Hyogo.
- 1967
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Started sales of Ichigaya House in Shinjuku Ward, Tokyo.
- 1969
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Established Sumitomo Thaniya Real Estate Co., (Thailand) Ltd. in Bangkok, Thailand.
Started sales of Izu Ippekiko vacation home lots in Ito, Shizuoka.
- 1970
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Listed on the Second Section of Tokyo Stock Exchange and Osaka Securities Exchange.
- 1971
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Upgraded to the First Section of the Tokyo Stock Exchange and Osaka Securities Exchange.
- 1972
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Established Sumitomo Realty & Development CA., Inc., a consolidated subsidiary, in Los Angeles (CA), U.S.A.
Started sales of Chiba Garden Town in Chiba, Chiba - a joint project.
Acquired management rights of Ekahanui, Inc. (Hawaii), entering golf course management business.
- 1973
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Established Sumitomo Fudosan Tatemono Service Co., Ltd., a consolidated subsidiary.
- 1974
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Completed construction of Shinjuku Sumitomo Building in Shinjuku Ward, Tokyo. *At the time of its completion, it boasted the title of Japan's tallest skyscraper, exceeding a height of 200 meters.
Moved Company headquarters to Shinjuku Sumitomo Building from Tokyo Sumitomo Building in Chiyoda Ward, Tokyo.Shinjuku Sumitomo Building
- 1975
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Established Sumitomo Real Estate Sales Co., Ltd., a consolidated subsidiary.
Completed construction of National Building in Minato Ward, Tokyo.
- 1976
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Completed construction of Ichihara Shogyo Building in Ichihara, Chiba.
Completed construction of Kyoto Sumitomo Building in Kyoto, Kyoto.
Completed construction of Yono House in Saitama, Saitama, the first condominium that adopted integrated design in Japan.
- 1977
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Completed construction of Sumitomo Nakanoshima Building in Osaka, Osaka.
Completed construction of Shukugawa Green Town in Nishinomiya, Hyogo - an urban area redevelopment project.
- 1978
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Established Biwako Resort Club Co., Ltd. (currently Sumitomo Fudosan Villa Fontaine Co., Ltd.), a consolidated subsidiary.
Started sales of Sobudai Green Park, a large-scale condominium, in Sagamihara, Kanagawa.
Completed construction of Sumitomo Mita Building in Minato Ward, Tokyo.
- 1980
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Established Sumitomo Fudosan Syscon Co., Ltd., a consolidated subsidiary.
Completed construction of Sumitomo Fudosan Hibiya Building in Minato Ward, Tokyo.
- 1982
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Started sales of Kawagoe Green Park in Kawagoe, Saitama.
Completed construction of Shinjuku NS Building in Shinjuku Ward, Tokyo; moved Company headquarters there from Shinjuku Sumitomo Building.Shinjuku NS BuildingStarted sales of Hiroo Garden Hills in Shibuya Ward, Tokyo - a joint project.
Completed construction of Sumitomo Minamiaoyama Building in Minato Ward, Tokyo.
- 1983
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Completed construction of Sumitomo Ichigaya Building in Shinjuku Ward, Tokyo.
Completed construction of Sumitomo Hanzomon Building in Chiyoda Ward, Tokyo.
- 1984
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Started sales of Rokko Grand Hills in Kobe, Hyogo.
Established Sumitomo Fudosan Finance Co., Ltd. (Absorbed in March, 2022).Established La Solana N.Y., Inc. (currently Sumitomo Realty & Development (N.Y.), Inc.) in New York, U.S.A.
- 1986
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Completed construction of Sumitomo Shibakoen Building in Minato Ward, Tokyo.
Established Sumitomo Fudosan Fitness Co., Ltd.(currently Sumitomo Fudosan Esforta Co., Ltd.), a consolidated subsidiary, entering fitness business.Established La Solana D.C., Inc. in Wasington D.C., U.S.A.
- 1987
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Acquired 666 Fifth Avenue (Tishman Building) in New York, U.S.A.
- 1988
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Established Sumitomo Realty & Development (Australia) Pty. Limited in Sydney, Australia.
- 1989
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Completed Sumitomo Hamamatsucho Building in Minato Ward, Tokyo.
Started sales of Seaside Momochi in Fukuoka, Fukuoka - a joint project.