Turkish media this morning reported that Keshia Handa (31) died after attending a salsa party on Saturday.
New Zealand's Ministry of Foreign Affairs and Trade (Mfat) said it was aware of "the tragic death of a New Zealander" in the Turkish city.
"The New Zealand Embassy in Ankara is providing consular support to the next of kin," Mfat said in a statement.
"Our thoughts are with the family at this sad time."
It's believed Ms Handa, who loved Latin dance, had been living in Queensland and her family were now in Istanbul.
Ms Handa was at the Grand Hotel de Londres on the night she died, according to Turkish media.
She travelled the world to take part in dance parties, the Hurriyet Daily News reported.
"Handa and two friends arrived in Istanbul on September 16 and checked into a hotel in Istanbul's Asmalimescit neighbourhood in Beyoglu to attend a dance party at the same hotel," the newspaper added.
On Saturday, Ms Handa was with about 200 other people on the hotel rooftop.
"The accident occurred as Handa moved away from the centre stage to get some fresh air," Hurriyet Daily News said.
She apparently stepped on a grate placed between the hotel roof and an adjacent apartment to create a makeshift bridge.
But the grate broke when Ms Handa stepped on it, and she reportedly fell about 10m.
Police and firefighters attended but Ms Handa did not survive the fall.
Hurriyet Daily News said police conducted a crime scene investigation.
A staff member at Grand Hotel de Londres, where the accident reportedly happened, said he saw no police at the hotel this morning New Zealand time but declined to comment further.
Hotel owner Ibrahim Huzmeli told BGN News hotel staff were greatly saddened after the accident.
BGN News said an official investigation was still underway.
Ms Handa's body was initially taken to the local Forensic Medicine Institute but she was expected to be repatriated to New Zealand soon, Turkish media reported.
The website said Ms Handa arrived from Australia the previous week for a vacation.
In 2007, Ms Handa was in a Gujarati play at Auckland Centennial Theatre.
Ms Handa was "very talented and utterly beautiful inside and out", her former classmate Mel Stephenson said.
The pair studied health psychology together when Ms Handa was 23.
"She was just a delightful person - really warm and genuine and just very caring," Ms Stephenson added.
"She was just a genuinely beautiful person."
Ms Handa was the youngest in a small University of Auckland class of five diploma students.
She later moved from Auckland to Brisbane.
Ms Handa participated in Latin and Indian dance activities and sometimes acted as well.
She was very popular, Ms Stephenson said.
"I just think sometimes bad things happen to good people."
Social media posts suggested Ms Handa had travelled in Southeast Asia earlier this year.
Tourist Police in Istanbul declined to comment on the investigation, referring questions to New Zealand diplomats in Turkey.
Ms Handa also performed with a bellydance group at a school fete in Queensland.
The Queensland Bellydance Academy was aware of the news today but a staff member said the academy was waiting on instructions from Ms Handa's family before saying anything publicly.
