The closure includes the Bermuda National Gallery and the Bermuda Society of Arts.
The upgrades include a power cut for building technicians to replace major electrical components.
The work will affect the building’s power supply and internet connection at the Par-la-Ville and City Hall car parks. The gates to both car parks will remain open over the three days, which will facilitate free parking.
Questions may be sent to Charles Waters, the City of Hamilton’s city engineer at firstname.lastname@example.org