“There were fears people were still in there, but everyone has been accounted for”, the spokesperson said.
Crews from Te Anau, Manapouri, Mossburn, Blackmount, Lumsden, Balfour and Invercargill attended the blaze.
Eight appliances, five tankers and one aerial remain on the scene.
“The fire is expected to take a while to extinguish”, the spokesperson said.
The Southland App reported the lodge as being mostly booked out from October to April with mainly overseas guests.
“Located about 5km from Te Anau, it was opened in 2002 and has since hosted an impressive array of high-end guests, from Hollywood icons to A-list celebrities”, the publication reported.
The lodge includes a five-star restaurant and is a popular wedding venue.