
| 1951 | Aug. | Mori Trust Holdings Inc. (formerly Taisei Co., Ltd.) established. |
| 1970 | Jun. | MORI TRUST CO., LTD. (formerly MORI BUILDING DEVELOPMENT CO., LTD.) established. |
| 1973 | Feb. | MORI TRUST HOTELS & RESORTS CO., LTD. (formerly Mori Biru Kanko Co., Ltd.) established. |
| 1976 | Aug. | Laforet Shuzenji opened. |
| 1983 | Mar. | Akasaka Twin Tower completed. |
| Nov. | MORI SANGYO TRUST CO., LTD. (formerly MORI BUILDING SANGYO CO., LTD.) established. |
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| 1984 | Mar. | Laforet Gora opened. |
| Nov. | Shin-Osaka MT Building Ⅰ completed. | |
| 1985 | Apr. | Laforet Ito opened. |
| Jun. | Laforet Biwako opened. | |
| 1986 | May. | Nippon Intelligent-Building Systems Corporation established. |
| 1987 | Apr. | Laforet Shirakawa Golf course opened. |
| 1989 | Nov. | Shiroyama Heating & Cooling Supply Co., Ltd. established. |
| 1990 | Jul. | Gotenyama Garden (formerly Gotenyama Hills) completed. |
| Hotel Laforet Tokyo opened. | ||
| Laforet Nasu opened. | ||
| 1991 | Nov. | Shiroyama Garden (formerly Shiroyama Hills) completed. |
| 1992 | Jul. | Laforet Zao Resort & Spa opened. |
| 1993 | Mar. | Kamiyacho MT Building completed. |
| 1994 | Apr. | Laforet Yamanakako opened. |
| 1996 | Dec. | Laforet Club Hotel Hakubahappo opened. |
| 1997 | Feb. | Acquires an ownership stake in and becomes involved in the management of MAMPEI HOTEL. |
| Apr. | Hotel Laforet Shin-Osaka opened. | |
| Jul. | Laforet Club Hotel Nakakaruizawa opened. | |
| 1998 | Jan. | Acquires stakes in URBAN LIFE Co., Ltd. |
| Feb. | Successfully bids for and acquires a site near the Tokyo Station Yaesu Exit (north side) through the tender from the Japanese National Railway Liquidation Settlement Corporation. | |
| Sep. | Acquires Ginza MTR Building (formerly Nissan Motor New Headquarters Building ). |
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| 1999 | Mar. | Sendai MT Building completed. |
| Jul. | Toranomon 2-chome Tower completed. | |
| Laforet Nankishirahama opened. | ||
| Sep. | Names changed to MORI TRUST CO., LTD. Head office move to Toranomon 2-chome Tower. | |
| Nov. | Acquires an ownership stake in and becomes involved in the management of MT GENEX CORPORATION (formerly KOGURE Corporation). | |
| 2000 | Feb. | MORI TRUST Asset Management Co., Ltd. established. |
| Mar. | Successfully bids for and acquires Block D-North-1 in the Shiodome district from the Tokyo Metropolitan Government. | |
| 2001 | Mar. | Acquires stakes in PARCO CO., LTD. (business partnership starts in Feb. 2006). |
| Aug. | FORETSEINE CO., LTD. established. | |
| 2002 | Apr. | MORI TRUST BUILDING MANAGEMENT CO., LTD. (formerly MT Facility Service Co., Ltd.) established. |
| Oct. | All name changes for Mori Trust Group rental buildings completed. | |
| 2003 | Aug. | MORI TRUST CO., LTD. and MORI SANGYO TRUST CO., LTD. merge. |
| Sep. | Marunouchi Trust Tower North in Marunouchi Trust City completed. | |
| 2004 | Feb. | MORI TRUST Sogo Reit, Inc. listed on the Tokyo Stock Exchange. |
| Oct. | MT&Hilton Hotel Co., Ltd. established. | |
| Nov. | MT GOLF DEVELOPMENT CO., LTD. established. | |
| 2005 | Jan. | Tokyo Shiodome Building completed. |
| Jul. | Name changed to Mori Trust Holdings Inc. | |
| Conrad Tokyo opened. | ||
| Aug. | Acquires an ownership stake in and becomes involved in the management of Laforet & Matsuo Golf Club (formerly Matsuo Golf Club). | |
| Nov. | Acquires the former site of Tohoku Gakuin junior and senior high schools in Sendai. | |
| 2006 | Jan. | Name changed to Gotenyama Garden and Shiroyama Garden, respectively. |
| Apr. | MT Labo Co., Ltd. established. | |
| Capital and business alliance agreement concluded with the ROYAL HOTEL, LIMITED. |
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| Oct. | MORI TRUST CO., LTD. makes MORI TRUST HOTELS & RESORTS CO., LTD. a subsidiary. | |
| 2007 | Aug. | MORI TRUST CO., LTD. makes MORI TRUST BUILDING MANAGEMENT CO., LTD. a subsidiary. |
| Establishes the MTL Fund No. 1 Investment Limited Partnership with MT Labo Co., Ltd. | ||
| Sep. | Hotel Sunroute Plaza Shinjuku opened. | |
| 2008 | Jan. | Starts construction of Sendai Trust Tower in Sendai Trust City. |
| Acquires Toranomon Pastoral from the Mutual Aid Association of Agriculture, Forestry and Fishery Corporation Personnel. |
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| Jun. | Starts construction of the Residence Ichibancho in Sendai Trust City. | |
| Oct. | Attracts the Westin Sendai to Sendai Trust City. | |
| Nov. | Marunouchi Trust Tower Main in Marunouchi Trust City completed. | |
| 2009 | Mar. | Shangri-La Hotel, Tokyo opened. |
| Jun. | TIC TOKYO opened. | |
| 2010 | Apr. | Acquires Akasaka Mitsuke MT Building from MORI TRUST Sogo Reit, Inc. Transfers Tokyo Shiodome Building to MORI TRUST Sogo Reit, Inc. |
| Jul. | MORI TRUST CO., LTD. and OHNO KOGYO CO., LTD. merge. | |
| Aug. | Sendai Trust City celebrates grand opening. | |
| The Westin Sendai opened. | ||
| Trust City Plaza opened. | ||
| 2011 | Jan. | Sendai Branch established. |
| Jun. | Establishes the MT Ikyu Inc. with Ikyu Corporation. |