Corporate Milestones
| 1888 | Establishment of Masuoka Shoten. |
Masuoka Shoten (Kure-shi, Hiroshima) where it all began. |
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| 1908 | Reorganization under the direction Tosaku Masuoka and the launch of construction business and pursuit of business as an official naval contractor. | |
| 1932 | Establishment of branch offices in Osaka, Yokosuka, Iwakuni, Hiroshima, and Hiro. | |
| 1935 | Establishment of branch offices in Tokyo, Sasebo, and Korea (Jinhae). | |
| 1943 | Establishment of the Central Committee of the Association to Regulate Japanese Civil Engineering and Construction as a wartime collaboration system. | |
| 1945 | Establishment of the Kure City Recovery Construction Association at the end of the war. Transformation of Masuoka Shoten from a member of the military-industrial complex to a post-war peacetime company, and its immediate engagement in recovery efforts. |
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| 1946August | Corporate registration of Masuoka Shoji Co., Ltd. (originally the logistics department of Masuoka Shoten). | |
| 1947 | Decision to establish the Tokyo Branch Office of Masuoka Gumi. Unveiling of the proposal for the TEKKO BUILDING project. | |
| 1948February | Corporate registration of Masuoka Architectural Contractors Inc. (originally the construction division of Masuoka Shoten). | |
| 1948November | Corporate registration of Chugoku Jari K.K. (originally the concrete aggregate division of Masuoka Shoten, and currently called Chugoku Bussan Corp.) | |
| 1949September 16 | Launch of Tekko Kaikan K.K. (President: Tosaku Masuoka, Address: 7-banchi Shibatori-Shinmachi, Minato-ku, Tokyo). Capitalized with JPY5,000,000, the company was established to engage in real estate sale/acquisition, leasing/rental, brokerage services and other businesses related to these fields. |
View of the TEKKO BUILDING (No. 1) construction site. |
| 1949November | Start of construction of TEKKO BUILDING (No. 1). | |
| 1950 | Corporate name changed from Tekko Kaikan K.K. to the company’s current name Tekko Building Co., Ltd. | |
| 1951July | Completion of TEKKO BUILDING (No. 1) (Gross floor area: 26,835m²). |
Panoramic view of TEKKO BUILDING (No. 1) soon after completion. |
| 1951December | Relocation of head office to 1-1 Marunouchi, Chiyoda-ku, Tokyo. | |
| 1954March | Completion of TEKKO BUILDING (No. 2) (Gross floor area of Building No. 1 and 2: 46,368m²). |
Completion of TEKKO BUIDING (No. 2). |
| 1958November | Completion of TEKKO BUILDING (No. 1) annex construction, increasing the combined gross floor area of Building No. 1 and 2 to 60,943m². | |
| 1964April | Commencement of real estate appraisal, site preparation, and sales business. | |
| 1969January | Completion of the 9F extension to TEKKO BUILDING (No. 2), increasing the combined gross floor area of Building No. 1 and 2 to 62,766m². |
View of TEKKO BUILDING (No. 1 and 2) after completion of 1st stage extension work. |
| 1970January | Head office address changed to 1-8-2 Marunouchi, Chiyoda-ku, Tokyo to reflect revisions to the Japanese addressing system. | |
| 1970June | Completion of the 9F extension to TEKKO BUILDING (No. 1), increasing the combined gross floor area of Building No. 1 and 2 to 66,280m². |
View of TEKKO BUILDING (No. 1 and 2) after completion of 2nd stage extension work (addition of the 9F). |
| 1970November | Establishment of the Hiroshima branch office (1-2-22 Kamiyacho, Hiroshima-shi, Hiroshima-ken) | |
| 1971 | Registration as a licensed real estate broker (Tokyo Metropolitan Government) | |
| 1972August | Registration as a licensed real estate appraiser (Tokyo Metropolitan Government) | |
| 1977August | Establishment of Biru Kanzai Co., Ltd., and assignment of building maintenance work to this company. | |
| 1979 | Building acquisition (Nishi-Chuo 1-Chome, Kure-shi) | |
| 1992June | Opening of the Kure Hankyu Hotel |
Kure Hankyu Hotel |
| 1997December | Completion of the triple-level parking facility on the west side of TEKKO BUILDING (No. 2) | |
| 2000September | Renewal construction work on the façade of TEKKO BUILDING No. 2 | |
| 2002September | Completion of the connecting hall with Otemachi Station | |
| 2004 | Relocation of the Hiroshima branch office to 1-1-17 Chuo, Kure-shi, Hiroshima-ken | |
| 2012April | Relocation of the head office to 2-6-2 Otemachi, Chiyoda-ku, Tokyo | |
| 2013April | Launch of construction of the new TEKKO BUILDING |
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| 2015October | Completion of construction of TEKKO BUILDING (Main Building and South Tower) | |
| 2016February | TEKKO BUILDING grand open Oakwood Premier Tokyo open |
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| 2019September | 70th anniversary | |
| 2020March | Tackle 12 SDGs with the aim of contributing to sustainable development. | |
| 2021January | Become the first large-scale mixed-use building in Japan to be 100% powered by renewable electricity. |
