The British Consulate in Istanbul has reopened nearly a year after it was partly destroyed by a suicide bomber.
The prince joined consulate staff at the newly-refitted Pera House
Fourteen people, including the UK's top envoy in Istanbul, died when a lorry packed with 550lb of explosives rammed the gates on 20 November.
Prince Charles, who is on an official visit to Turkey, was among those at the ceremony at Pera House on Monday.
Staff are to move back into the building in stages, although the visa section has already returned.
Consul General Roger Short, his personal assistant Lisa Hallworth, originally from Greater Manchester, and former airline worker Nanette Kurma, from Ayrshire were among those killed in the blast.
It was part of a week-long series of attacks in Istanbul which included explosions at two synagogues and the HSBC bank. More than 60 people died.
Prince Charles, who was joined by surviving staff at the ceremony, described the attack as "horrific".
But he said: "Far from sowing division between us, those who planned these
murderous attacks simply brought us together - Briton and Turk, Muslim, Jew and
"Today we are looking forward once more, as I suspect those who lost their lives almost a year ago would have wished."
Visa section staff Tom Burke, 53, from Crowborough, East Sussex, was among survivors who met the prince.
He said: "No one is going to drive us away, especially terrorists."
Sixty-nine people are being tried in connection with the bombings.