Prince Charles has said he hopes Bank Buildings, which was destroyed by fire last year, will “come back to life soon”.
Crowds have gathered in Belfast to greet the Duke of Cambridge who is visiting the city on Wednesday.
Prince William's first stop is at mental health charity Inspire.
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He is meeting counsellors and people helped by the charity before he officially opens their new building Lombard House.
Later, William will meet with emergency service organisations Lagan Search and Rescue and the Air Ambulance.
The visit comes after Prince Harry was in Northern Ireland last month.
On his first official visit to Northern Ireland, Prince Harry attended a series of engagements, in Ballymena, Belfast and Hillsborough.
People in Northern Ireland have been reacting to the news that the Duke of Edinburgh is to stand down from royal duties from August.