| 2023 | Stephan Widrig appointed new CEO and succeeds Roger Herzog. |
| 2021 | Increase of the 0.60% bond 2021-2030 by CHF 80 million to a total of CHF 250 million. |
| 2021 | Acquisition of several real estate companies and the general contracting business of Immosynergies Holding Sàrl in Western Switzerland. |
| 2021 | 0.60% bond 2021-2030 of CHF 170 million. |
| 2020 | 0.70% bond 2020-2028 of CHF 175 million. |
| 2019 | 0.40% bond 2019-2029 of CHF 200 million. |
| 2018 | Sale of Hammer Retex AG active in facility management for third parties |
| 2018 | 0.50% bond 2018–2023 of CHF 125 million. |
| 2017 | 0.875% bond 2017–2027 of CHF 160 million. |
| 2017 | Acquisition of four commercial properties with a total usesful space of 54,000 square metres from Generali Switzerland. |
| 2017 | 0.75% bond 2017–2026 of CHF 150 million. |
| 2016 | 0.625% bond 2016 - 2024 of CHF 150 million. |
| 2015 | Roger Herzog appointed CEO and succeeds Bruno Bettoni. |
| 2015 | 0.75% bond 2015 - 2021 of CHF 120 million. |
| 2015 | 1.375% bond 2015 - 2025 of CHF 100 million. |
| 2014 | 1.25% bond 2014 -2019 of CHF 125 million. |
| 2013 | 2.00% bond 2013–2020 of CHF 150 million. |
| 2012 | Takeover of Hammer Retex Group by Allreal Holding Ltd. |
| 2012 | Capital increase with net proceeds of CHF 265 million (1 for 6 purchase rights). |
| 2011 | 2.5% bond 2011–2016 of CHF 150 million. |
| 2010 | Capital increase with net proceeds of CHF 225 million (1 for 5 purchase rights). |
| 2009 | 2.125% convertible bond 2009–2014 of CHF 200 million. |
| 2008 | Takeover of Apalux AG by Allreal Office AG. |
| 2007 | Capital increase with net proceeds of CHF 180 million (1 for 6 purchase rights). |
| 2007 | Establishment of subsidary company Allreal Toni AG as well as takeover and absorption of Immobilien Missionstrasse 64 AG by Allreal Office AG. |
| 2006 | 1.875% convertible bond 2006–2010 of CHF 175 million. Establishment of subsidary company Allreal Markthalle AG. |
| 2006 | Establishment of the subsidiary Allreal Markthalle AG. |
| 2005 | Capital increase with net proceeds of CHF 154.1 million (1 for 5 purchase rights). |
| 2003 | Capital increase with net proceeds of CHF 115.9 million (1 for 4 purchase rights). |
| 2002 | Takeover and integration of Juventus AG, Grundstückgesellschaft Juventus and Immobiliengesellschaft ATZ by Allreal Office AG; establishment of the subsidiaries Allreal Vulkan AG and Allreal West AG. |
| 2000 | Listing of Registered Shares on the SWX. |
| 1999 | Establishment of Allreal Holding AG and the subsidiaries Allreal Finanz AG, Allreal Home AG and Allreal Office AG. Acquisition of Oerlikon-Bührle Immobilien AG by Allreal Holding AG and subsequent sale of the Uto Albis Group to Livit AG. |
| 1996 | Establishment of Allreal Holding AG and the subsidiaries Allreal Finanz AG, Allreal Home AG and Allreal Office AG. Acquisition of Oerlikon-Bührle Immobilien AG by Allreal Holding AG and subsequent sale of the Uto Albis Group to Livit AG. |
| 1990 | Acquisition of Albis Bau und Verwaltungs AG (Albis); integration of its own property management into Albis. |
| 1980–1990 | Expansion of activities to become one of the leading general contractors in Switzerland with focus on the Greater Zurich Area and the Canton of Ticino. |
| 1970 | Spin-off and establishment of Oerlikon-Bührle Immobilien AG as a subsidiary of Oerlikon-Bührle Holding AG; orientation towards outside clients. |
