The following date-based events are associated with this building:
event classic
| Event Type | From | To | Notes |
| Journal reference | 1868/07/31 | | Improvements to original building |
| Journal reference | 1890/02/25 | | Original building |
| Journal reference | 1896/06/05 | | Additions |
| Journal reference | 1904/09/13 | | Additions |
| 1972 | | Additions by M Kirkwood of the County Architect's Department |