Returning through the kitchen, which is turning out platters of seafood, he stopped to chat with kitchen staff before rejoining the party.
The election night party at the Duke was an "intimate" gathering of those who had fought for Northland, he said.
Peters said it would have been too expensive to have brought party workers from across the country for election night.
He said he wasn't expecting to receive or make any phone calls this evening related to any coalition.
"For 21 years I've said this about MMP - the only way you can get something to endure is if you discuss it democratically with your colleagues."
Peters' plans for tomorrow were to start with a breakfast with his team before driving to Whananaki, on the coast out from Whangarei, where he grew up.