New Zealand's parliamentary under-secretary for Foreign Affairs, Fletcher Tabuteau, has opened the new chancery of the New Zealand High Commission in Niue.
The new building replaces one built about 70 years ago.
Mr Tabuteau said both countries were bound together in a special and enduring relationship.
"Its many strands include our shared Polynesian heritage and stories, our common citizenship, our shared values, our family ties, and many other people to people connections.
"It includes the service of Niueans who fought alongside New Zealanders in the Māori Pioneer Battalion in the First World War and the 28th Māori Battalion in the 2nd World War."