| Frogmore House acquired | 1922 |
| McCristal Schoolhouse acquired and transferred to the site behind Frogmore | 1922 |
| Original Hall | 1923 |
| Classroom Block and Cloisters at rear of Frogmore | 1944 |
| Bourke House rented and acquired | 1946 - 1958 |
| Bayview acquired | 1957 |
| Science Laboratory 'New Lab' (formerly McCristal Schoolhouse) | 1958 |
| Swimming Pool One | 1960 |
| Gymnasium (George Kirk, Director) | 1962 |
| Keysborough Playing Fields One, Lower Dandenong Road (acquired 48 acres) | 1962 |
| Shoreham property acquired/gifted | 1962 |
| Science block 'Benefactors' Wing' | 1965 |
| Library (Merv Dober, Librarian) | 1969 |
| McCristal Schoolhouse (acquired 1922 and latterly New Lab of 1958) demolished | 1969 |
| Services Wing and Form VI Club | 1970 |
| Swimming Pool Two ('Jubilee Swimming Pool', corner Como Parade West and Lucerne Street) | 1973 |
| Assembly Hall (Junior School) | 1974 |
| Keysborough Playing Fields Two, Springvale Road acquired | 1974 |
| Laboratory (Junior School) | 1974 |
| Music Room (Junior School) | 1974 |
| Original Hall demolished | 1976 |
| Senior Staff Common room and administration wing | 1976 |
| McBeath Lecture Theatre | 1977 |
| 'The Honeymoon Cottage' demolished | 1977 |
| Music School (Ian Godsil, Director; Lewis Plumridge, Director) | 1977 |
| Phillip House demolished | 1977 |
| Thorold Hall | 1977 |
| Norman Pearson Courtyard | 1979 |
| John Reilly Gates | 1979 |
| Anderson Gates | 1980 |
| The Chapel Way and Charles Weir Memorial Lych Gate | 1980 |
| The Finlay Anderson Library (Ann Borham, Librarian) and Junior Staff Common room | 1982 |
| Arts Centre (formerly Classroom Block and Cloisters at rear old Frogmore) | 1983 |
| Diamond Jubilee Wing | 1983 |
| Mary Jones Early Learning Centre | 1983 |
| Bourke House demolished | 1984 |
| Flinders House demolished | 1984 |
| John Hammond Charlesworth Computer Centre | 1984 |
| Keith Jones Gymnasium | 1984 |
| R M Sykes Camp at Shoreham rebuilt | 1984 |
| Manual Arts Centre | 1984 |
| The Gregory Fish Library | 1991 |
| Bayside Aquatic Centre | 1999 |
| Don Ingram Centre | 2001 |
| Sports and Function Centre | 2005 |
| Science and Environmental Studies Centre | 2009 |
| New Eblana building built | 2011 |
| Thorold Hall refurbishment as 'Greenways' Year 9 Campus | 2012 |
| Greenways opening | 2013 |
| Former Gymnasium, Services Wing, Year 12 Club and Jubilee Swimming Pool demolished | 2015 |
| Creativity Centre built | 2016 - 2017 |
| Creativity Centre opening | 2017 |
| Former Keith Jones Gymnasium refurbished for the Year 5 and Year 6 cohort. | 2017 |
| Keith Jones Learning Centre opening | 2018 |
